← Old story – forged stamps never bear genuine overprints
Regarding the genuine overprinted 25000 stamp, was there anything on the back? Mine looks like the genuine overprint; however, there is the letters “AG” on both attached stamps… Have you discussed explained the meaning of those letters in a different post?
I think you are a valuable asset and most likely have saved many collectors from ejecting out of this hobby!
AG is one of the more common signatures or marks, but of unknown origin. It gives no hint whether the stamp/ovp is genuine or not. And thanks for the comment!
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