World's Series 1929 Cancel

With e-commerce almost anything is possible when it comes to selling or buying. Before I would even think about selling it I would certainly find out the real world value of the collection.

The cover is labeled as being from the William Walker collection. I wonder if...
https://en.wikipedia.org/wiki/Bill_...r_(baseball)

The one that is a full cover with the large black baseball cancels would be the one that has some value, though I would not think it to be more than a couple of hundred dollars at best and only if just the right collectors were bidding in the same auction for it. The one with the diamond shaped cancel with the bat and the number 29 would have been the better one if it were sill on a cover, but since it is only on a pair of stamps most of its value is lost. These fancy cancels are very easy to duplicate with modern technology these days and stamps and covers of the period are very common and inexpensive so creating one of these modern fancy cancel covers would not be difficult so the values would be modest unless they were expertised by the American Philatelic Society Expertizing Service which would cost a non-member of the APS a base fee of $45 and perhaps more if they value it at more than a couple of hundred dollars. If they come back and say that either it is a forgery or something on which they are unable to provide a certificate then you are out the money. Creating such cancels on loose stamps would be even easier and more difficult to expertize since one would not have the full cover to examine for clues.

I have found that Antique Roadshow does not seem to include stamps in its shows. I do not know why but they seem to avoid stamps and also coins. Even if they did include atamps Antiques Road Show appraisers give insurance valuations and not actual value appraisals. Insurance valuations are typically a multiple of 5 to 10 times what the object would normally sell for in an ordinary auction, and as much as 20 times higher what a dealer would pay you for the item. The reason insurance appraisals are so high is that is the estimaled cost if you were to go to a high end dealer in a major city like New York or London and tell them that you had to buy the same item immediately and without regard to cost and that is what you would expect they would charge you. Antiques Road Show has its appraisers provide insurance valuations because the numbers they come up with are very impressive which helps with the show's ratings. The higher the numbers they can say results in proportionately higher numbers of viewers.

Those covers are not quite as easy to reproduce as you make it sound, although experization is always a good idea for certain types of items. Very difficult to get the cancels right because of differences in inks and printing methods, even if the design is the same.