American Philatelic Society

Argentina Scott 30
Also available in .pdf format.

One of these stamps is a genuine Argentina Scott 30 and the other is a forgery. Can you tell the difference?
If you are having trouble, see the "hints" and answer below.



  1. Genuine: In the genuine stamp the left serif of the “1” overprint is the same thickness as the right serif.
  2. Forgery: In the forgery the left serif of the “1” is thinner than the right side.


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