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February 25, 2021 08:47
I notice that the catalog value of stamps (NL, NI, CU, NA) is out of step with the current NVPH catalogs. I now obediently send suggestions per series / stamp and notice that this is very slowly being adopted (yesterday one of at least a year ago).

For administrators it seems to me mainly work that they are not waiting for and for me as a user it decreases the value of the catalog on LastDodo if it is relatively random. Given that the price normally goes up, it also seems good to shop owners if the catalog value is not unnecessarily low, so that their prices are virtually reduced.

Is it not conceivable to periodically equalize this value with the NVPH- catalog value?
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February 25, 2021 09:03
I notice that the catalog value of stamps (NL, NI, CU, NA) is quite out of step with the current NVPH catalogs. I now obediently send suggestions per series / stamp and notice that this is very slowly being adopted (yesterday one of at least a year ago).

There are many price suggestions for Stamps that are based on the prices of the NVPH. However, these prices are not realistic in practice, but do create a large reservoir of unprocessed price suggestions. Please only submit realistic price suggestions based on verifiable data.
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  • February 27, 2021 22:18
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February 27, 2021 22:18
The NVPH catalog is the only price base that I come across in practice and I don't know how they get price, but in any case I have checked it there if I make a suggestion. There is simply no other unless you start one yourself based on multiple auction indexes. The random values that I now see in the lastdodo catalog just don't feel right. Once a price has been set for 1 of the 3 categories, you must also start begging the 2nd and 3rd via price suggestions. It happens that the importer only does stamping, for example.

ComAnswer What is the basis of the current values then? Isn't that just made up by someone?

If you have a stable foundation that you can trust, then it simply benefits you more. Even if that standard is too high, you can take it into account, such as a clock that runs ahead of it by default.
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February 27, 2021 22:25
What happens now is: someone enters something and all the suggestions after that are in the pile because there are too many? A waste of energy, also for the submitter. Just put in the nvph value annually and add that that is the value you are looking at. You don't even have to submit suggestions on those prices. Then only the non-NVPH stamps are left for suggestions and maybe that is easier to handle.
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February 28, 2021 14:47
I agree with your problem definition, but not with the solution. First, inheriting the NVPH values is nothing more than overwriting an existing catalog, probably copyrighted. Anyway, LastDodo is allowed to comment on that. In addition, as the name implies, the NVPH is a catalog of stamp dealers. Often with a lot of knowledge, but also with self-interest.
Because what is the value of a stamp? It is a question of supply, demand and quality of the stamp. (I will disregard the postal residual value for the moment). There is little supply and relatively high demand for an old rare stamp. It makes sense to base the value of that stamp on the last x number of auction revenues, possibly increased by a small margin that takes quality differences into account. For the sake of convenience, I assume that the value stated in the NVPH is a realistic reflection of this.
Unfortunately (or perhaps fortunately) there is much more supply than demand for many stamps. And I think that's where it goes wrong. Stamps that still have a value of a few euros in paper catalogs are offered en masse for 5 cents. And those are stamps that really don't differ that much in quality. Then in my opinion you really can no longer regard those high paper catalog values as realistic. Perhaps an average selling price on LastDodo is more realistic as a value. And maybe LastDodo can calculate that automatically and enter it as a value. There are also hooks and eyes and there may be other, better ideas. But for me a standard NVPH value is not one of them. And you may have to delete the entire value idea from the stamp catalog.

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February 28, 2021 17:29
In addition, the NVPH catalog states the minimum handling fee per stamp. For example, a 5 cent nominal queen's head will cost you € 0.20 or € 0.30 in the store, but is not worth a penny every week. However, the trader has to do work for it and that is passed on. I have thousands of them and you think you are nice and rich ... miss ...
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Rene
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March 01, 2021 09:11
@portpaid,

If you want to know the value of a stamp you now have - if available - as a frame of reference on LastDodo:

- the current sales prices that LastDodo shops are asking;
- past revenue (a new block we added earlier this year; will be shown if there have been any returns);
- the catalog value (users can make suggestions that administrators can approve or disapprove of).

V.w.b. the catalog value is intended to be a realistic reflection of the value for which the item is sold under the various conditions. If there is a lot of supply in LastDodo shops, it should be close to the prices asked there. For rare items, auction proceeds can form the basis for a catalog value (this can then be referred to when someone makes a suggestion for the catalog value).

When you buy or sell something, you can never rely on it assume that you will receive or have to pay the list price. It is only an indication of the value. A sale price in a transaction depends on many factors: the exact condition, how much effort you want to put in for a good return / good purchase price, where you buy or sell it, the moment of buying / selling, etc.



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March 01, 2021 22:02
past returns

Much better than any catalog price. This is a good indication of the real market price. A handhold for pricing (seller) and treasure hunt (buyer).

Insight into numbers and time is lacking:
- was that 'cheap' the last transaction or the first?
- is that 'expensive' transaction price recently, or a very long time ago?
- has the fluctuation due to dozens of sales in the last year, or has no copies been traded in the last year? mi also important.

But, as it is now presented, it is already a wonderful enrichment.
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March 02, 2021 13:50
Those are interesting things in themselves of course Raoul and we will also look at them gradually, but we want to leave it in the current setup for a while to let everyone get used to the concept. Thanks for the compliment.
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September 06, 2021 16:12
I also come across quite a few stamps for which someone has ever entered a stamped value but not the MNH or unused value. As a result, 'all' values are immediately blocked.

A selection:

#554377 (troublesome: NVPH doesn't have these either, but I know what I paid for it)
#553869
#1470139
#1470299
#1144115
#807111
#1144283
#803385
....

Would it be a good idea to only lock the value when it says something? I still find it difficult, but it helps a lot. You will then receive them in Excel export. Doing what the shops have captured for each stamp, whether or not offline, is impossible at bulk level. In any case, it only works for me if the result is in the Lastdodo Catalog value. I think this is really what computers are for: helping people. The automatic updating of the Lastdodo Catalog value based on a realistic algorithm, for example based on the past, must of course be programmed once.
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Morits
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September 06, 2021 16:40
portbetaald 
A # in front of the catalog number makes it a link, so easy for others
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September 06, 2021 16:45
Useful. Didn't know: thanks!
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September 06, 2021 17:41
portbetaald 

Calculating the value is a very difficult one for me. In fact, the free market on LD ensures that too high prices do not succeed. Most of the stamps from the Netherlands (1970s-80s-90s) should actually have a catalog value of EUR 0.00.
Taking over the value of a catalog from another 'brand' is denying yourself. Then you might as well scan all the pages from that catalog and place them on LD ...  Gone fun and gone your own identity. No, we don't want that (I hope anyway).

For certain stamps, such as #554377, a value of 'MNH' is not to capture. A stamp that is (almost) not available in pure MNH condition ... what do you put on it? What should you compare to? Someone may be willing to pay 500 euros just to fill that one hole, while another would never give 5 euros for it. Then the statement 'the value is what a madman is willing to pay for it' comes into play. And if that madman doesn't show up (or his/her hole is already filled) ... then the stamp will simply be offered for years without changing hands. Since there are already 69 MNH lunatics on that item, you can assume that the market is already saturated (just kidding) ...
I think you should be sufficiently educated with such pieces as a seller - and also as a buyer - to make a sale/purchase. No computer program can help you with that. You cannot create something (determine a concrete value) from nothing (no transactions).
The same for certain 'stamped' copies. At the Viennese Drukken, for example, you sometimes come across such copies ... one might wonder whether it is all more frivolous. Still bizarre that thousands would have acquired such a stamped 'treasure' by accident, from stamps that were only valid for postage for a few days.

For another large part, not the extremely rare (to impossible) and not even the bulk worthless stamps, one of which is regularly sold over the LD counter, you can use that information 'revenues from the past' as a direction. Not the LD Catalog Value. It's as crazy as the prices printed in most paper catalogs. You pay max. 20% of that, and for many stamps not even 5% (eg Bund and Berlin, the 'popular' years).

The only thing missing is the tendency, the concrete historical aspect : was that lowest selling price the last one, or the one from 10 years ago? And wasn't that much different from the 2nd cheapest? There are collectors who simply want to get rid of their duplicates as much as possible (and as quickly as possible). They are just duplicates, they take up space, and the converted value can be used to expand the collection. I think you can almost blindly assume that the lowest selling price is the most recent. Sealing is a hobby that has been declining in importance for years, and more and more are coming onto the market. 'Treasures in the attic', which are found and offered during a clearance (sometimes after a death). And where the disappointment afterwards is very great when it turns out that they are not really such treasures lol.

But thinking about an algorithm that could be used on LD is of course never a bad thing. Even if only to offer sellers (and buyers) a well-founded basis for three quarters of the items.
You could, for example, automatically calculate an item in a certain condition if there is already 50 on LD of have been traded. Then you always remove the 4 extremes, then take the 25 most recent sales and the average of them. As a reference point.
But ... how many items have already been sold 50 times?
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September 06, 2021 20:45
In any case, it would be good not to hold each other in a hold until the ultimate algorithm is found and just not be able to fill in anything all the time. Also the price I gave for it like crazy is not exported so as long as the impasse continues, the value of Lastdodo for me also decreases.
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September 06, 2021 22:26
Postage paid, I don't think it's a hostage situation, rather a well-considered security mechanism.

It's perfectly possible to put a price on an item first, when adding an item or later. For the 3 conditions, or for 1 or 2. Then 'den dop' (lock) is closed. Security to protect unsuspecting buyers from creative sellers, and vice versa. 'set the price so that it suits me, and adjust it quickly after a sale'. Nobody wants that.
The new system (which runs in parallel) with the development of sales prices is sublime. Despite the lack of data regarding numbers and time.




Here you can clearly see that the first registration of price (60 and 37 euros) was fairly high. But 10 years ago that may have been a realistic interpretation. Not anymore.
For this item there are suppliers, condition stamped, between 2 and 9 euros. Based on the LD list price you might think '9 euros is a bargain'. But the reality, the revenue table, proves that that price is out of scope.
2 euros, is about 5% of the LD catalog value. A perfect copy of the paper catalog: you pay 5% for a stamp of Germany (Bund). And nothing more. Not counting the rare exceptions. Years ago (2009), something or someone simply copied the prices for this item from a paper catalog (Michel?).
Admit it: peasant fraud. The LD catalog value, now at today, should be 2 euros. And not a cent more.
Unless the last 20 sales were 6 and 7 euros, and the sales from 5-10 years ago 1.49 to 4 euros ...  Then the LD list price should be 6 euros. You can't see that. My gut feeling is more like 2 euros for this item.

LD list prices can no longer be changed by a user after at least one value has been entered. Only a (super?) administrator can do that. To prevent abuse.
Any user can, however, submit a catalog value suggestion at any time.



In itself, nothing is being held hostage. A value can be added or changed at any time. Until another user on LD submits a suggestion.
However, the reality... How can an administrator judge whether that suggestion is realistic? Looking in a paper catalog? Then we are back to square one.
Looking at the table 'Revenue LastDodo shops'? Anyone can do that: look at that table. You don't need to be highly educated for that. It's there. So we might as well save that overhead (civil service). It's there for everyone. And it is what it is.

A calculation (algorithm) broadly accepted by the majority of buyers and sellers could show a realistic approximate catalog value in real time. As an optimization to the table. No more, no less: an optimisation. A daily quotation (per condition), such as on the stock exchange. But then 24/7. In my opinion, this is not too great a development, because all data is present (to prepare the table).
The problem is only to determine a calculation method that is accepted as broadly as possible (decision). I'm just a simple user, who can explain it well :)


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September 06, 2021 23:12
Aside:
#554377 is not a stamp in my opinion. Previously a financial transaction seal. Belongs in the 'Other' section under 'Tax stamps'.
The banks used to have such stamps that were stuck on documents, whereby the recipient could collect his money with that document in a bank branch.  The stamps were proof that the debtor had transferred the money to the bank.
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Interesting line of thought @Raoul62 , but I don't know if we'll get there that way. An algorithm that works equally well for each section does not seem obvious to me. A lot of programming too, and difficult to explain to both buyers and sellers (difficult in the sense that expectations regarding the price range shown are going to be much higher). It will take a lot more thinking and insight to read and interpret the evolution of a stamp over 12 years, for a few euro cents more or less. Trends can also suddenly change again, especially with less available items. Moreover, it remains the case that everyone can ask/give what he/she wants. Sometimes you pay a little more for an item because it is in a shop where you are already placing an order.

Now, I've been thinking in this direction before and would like to give an idea and a suggestion, which are separate from each other:

- idea: just remove the block with catalog value in rubrics where it no longer has real value. Stamps for example, but maybe there are others... It causes frustration, anger and incomprehension.

- suggestion (quick win): Also show on the detail page of an item how much items have already been sold. eg. '12 items sold, last on June 12, 2021'. Since the average price is shown, it must be known how many copies have been sold. So easy to achieve, I think. For items that are sold more often, you may dare to ask a little more than for an item that has only been sold three times in 12 years at an average low price.


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September 07, 2021 22:58
Whether or not postage stamps are a postage stamp is something I don't care about. It is so named as a category in the NVPH catalog and lastdodo. Happy with. Don't do anything more.

That parallel system sounds nice, but until the export is adapted so that it is in it, I see it in the overviews in my online collection and I don't have to click open stamp-by-stamp, it is of little use to me.

Furthermore, my experience is that a lot of stamps are never offered on lastdodo. For example, I couldn't offer anything above 75€. So unless the algorithm also receives input from external auctions, for example, it will always remain limited. It is precisely the more expensive stamps where value has value.

That one super administrator is a nice security in itself and I also understand, but if that one super administrator keeps a backlog of all adjustments and only responds after a year or years (yes really) then it practically just works not and we hold each other in a hold.
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September 07, 2021 23:06
The lastdodo catalog value is the only one I see consistent. Empty or not empty.

The alternatives:
- what did I pay for it myself
- what are shop averages/algorithm 

Will not be exported and not shown unless I specifically click open those stamp details .

If the alternatives work, the lastdodo catalog value may just go away from me. Then the super administrator will no longer be bothered by it. Everyone wins.
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September 08, 2021 11:16
portbetaald
Well, X, for now you can register (add) important data for your own collection per item, even your own images:

That that data NOW cannot be exported seeing is just the way it is.
But, in a few places on the forum it was already indicated that the function 'Export' is on the todo list. So that will change sooner or later. And then you can be prepared (own data already available). Then you will immediately enjoy it 100% upon release.

Actually, we should pass on suggestions for adjusting catalog value en masse, item by item. That nonsense would soon be over.
Ultimately, the values that are there now are:
- either taken from another (paper) catalog (I estimate for 65%);
- or emotional composed (e.g. I was the madman who paid 500 euros for it, so it is worth 1,000 euros) ... I think about 5%;
- either inspired by personal motives (own advantage) ... also 5%?
With the other 25% nothing is entered at LD Catalog value.

None of those three are a good basis.
'From a paper catalogue': then you don't know from which catalogue, from which year (may be a price from 15 years ago, from a catalog published by a stamp association, printed by stencils ...), and how founded (by way of general vote, spinning a wheel or by inquiring at recognized stamp dealers).
'Emotional' is just as silly. It's not because you paid 500 euros for it yourself that the item is actually worth that much.
And finally 'personal motives' is a nicer description of 'attempted scam'.

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September 09, 2021 18:20
The only value I see consistently everywhere is the lastdodo catalog value. I suggest: if that is the case, then I would like that to make sense and not empty values or completely obsolete. I think we think the same. I also state: the current system with a super administrator does not work because he has long since stopped responding to requests of this nature. We seem to agree on that too. It's the exact reason for this thread: I was just tired of thinking I'm contributing but getting zero response.

Basically the only ubiquitous thing there is the lastdodo catalog value and that too often makes no sense. I see that you say that the export is a subject of development: I think that is a nice start from this situation if it means that what I paid for it (yes, I fill that in well) and the point-in-time algorithm -estimation is also included.

It gets even nicer if the lastdodo catalog value is really replaced by the algorithm and disappears completely so that it also doesn't cause confusion and annoyance.
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September 10, 2021 11:26
The fact that those data are NOW visible in the export is simply the case.
But, in some places on the forum it was already indicated that the function 'Export' is on the todo list. So that will change sooner or later. And then you can be prepared (own data already available). Then you will immediately enjoy it for 100% upon release.

Raoul62 portbetaald This is correct. We are going to strongly improve exports. Nothing happened for a long time.

V.w.b. the catalog value: it is indeed more relevant for stamps that have little or no supply and that have not sold much on LastDodo in the past, than for stamps that are offered a lot and from which we already have a lot of revenue.

vwb the price suggestions: there is indeed a large backlog in processing the suggestions for stamps. We are still looking at how to deal with this and how it can work best.
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September 10, 2021 11:57
My suggestion: put the 'LD List Price next to the beautiful table, and let go of the input/change. Is it in the history anyway (you can find culprits with it :)), and if there are sales, then a user will be more inclined to interpret those figures.
Only if there are no sellers, and there is only one supplier ... then a crazy price can sometimes be put on it. But then that statement holds again: value is what a madman is 'willing' to pay for it. Nobody is obliged to buy, but you can go crazy enough if you really want that one seal.
Let go: to spare the administrators. There is still so much other work to do, which is more important.
Build in a check at item level: if a certain field changes too much in a period of a few months, then a signal must be sent that must be processed (look what's going on). If there are no signals: broader criteria. There are many false signals: stricter criteria. Criteria to be set (parameters) by the supreme administrator.
That's how I would do it. Curious if there are other inspirational proposals. It is always a good idea to think out of the box. Outside the lines.
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September 10, 2021 13:07
Vwb. the catalog value: this is indeed more relevant for stamps that have little or no supply and that have not been sold much on LastDodo in the past, than for stamps that are offered a lot and from which we already have a lot of revenue.

Rene , cf. your comment above: it might help to flip the two 'blocks' on the screen. So: first the block with proceeds and below the block with the catalog value. If there are no or hardly any sales, you have the list price below that as a guideline. And as suggested earlier in this thread: supplement the sales prices with the number of items sold.
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September 10, 2021 14:20
This is how it could look:


(1) make better use of the space to show more shops, in a good order (price) per condition. One long list with so much white in between... I like to see things at a glance. Fewer clicks too to find the better bargains.

(2) the genius table with the data 'yields'

(3) supplemented with what the users think the value is (no longer via a waiting list after submitting a suggestion, but with a signal if the field changes too frequently - or too drastically -. Management by exception, this is called. intervene as an administrator if it really could be necessary.

(4) what about the latest sales, and how many such items have already been sold? In this example, you'll notice that "unused" isn't popular, and Stamped actually yields the better return. So in the past many stamped copies would have been traded for next to nothing, but not anymore. There is a demand for (sales), and the prices are good.
Mint Fri is also on the rise in terms of price, but traded less frequently.

(5) Don't make me have to keep clicking to see if I have it in collection, or wishlist, and in what condition. Show me that here. If I want to change or supplement, then at least I already know which box to click. And at a glance I can also know whether I might consider purchasing Mint if I do have it, but stamped.

This would, to me, popularize the detail of an item. Much more inclined to go check it out. Detail data with real management data. Information for those who can taste and interpret the data.

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