Is a sheet of old stamps worth more to a collector than the sum of the individual stamps?

Details about the tear perforations along multiple connected stamps can increase value.

@Ltryptophan, what if they’re intact, not torn?

Yes, I’d say rare stamps still intact are valuable. But, let’s say there is a very rare stamp that is one of only two or three known to exist, and you present with a page of these stamps all connected, I’d think you’d treat the page as a single rare group, even though it increased the number of those very rare stamps known to exist.

From my stamp collecting days, the value of a sheet of stamps is greater than the sum of the individual stamps. Collectors like getting the whole sheet intact, especially with the plate numbers attached.

A sheet is worth more than a block or more than an individual. This would be true for common or rarer stamps. As a collector when I was a kid you try to get the individual to complete your set. However holding on to a block or a whole sheet intact is of more value for than very reason. There are less full sheets available as time goes on.

Most collectors prefer a whole page still intact. Assuming that you did have 1 rare stamp in the group, that should make the whole page even MORE valuable!!!

Now, as where to go to find out the worth. Where I live, the guy who owns the coin shop is also very knowledgeable re stamps. I don’t see many stamp stores around anymore. So, while out & about, stop in at a local coin store & ask them where you might find someone knowledgeable on stamps. The worst they might say is I don’t know. The best would be to give you a name & phone number.

There is probably an appraiser in your area you can call.

Learn something new every day!!!

Go on google maps & type in ”stamp dealers near me”. Then choose the one you like.

It’s that number on the edge of the page that makes some or all of the page valuable.