Fort Mchenry Types Of Paper Used For Printing

This I know to be a very common stamp, but the one below the pair seems to be on a different type of paper. It is almost as thin as the rice paper stamps of China, and when reversed you can actually see the pattern on the other side of the stamp.
Perhaps this could also be that the ink was not dry and it printed an image on the back of the other stamp, but that would not explain the the thiness of the paper.
All ideas appreciated. This came out of a stock book that was purchased in a thrift shop. (Just love those places)
Regards,
Horamakhet

Hello Horamakhet,

In my opinion, it looks like when this stamp was removed from the envelope, some of the stamp backing stayed on the envelope/paper. Commonly called a thin.

This happens to me sometimes when I am trying to remove a stamp.

Dave N.

I would also agree, especially if the item was found in a thrift shop mixture (probably by a novice collector). I've found that if someone thinks they can shortcut the soaking routine, they might try to pull the stamp off its backing which could create that kind of end result.

What you should look for in this issue are varieties, such as missing colors. Here's one example from my collection:

Hi to all

Thanks for that, I did not think of that. I know what you mean. I has happened to me as well.
Regards,
Horamakhet