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Slideshow
2024 ISGC Benefit Auction

  
  2024 ISGC Auction Scans
  
     AP Cover March 2019   

    Member David Lindwall's article
    got Guatemala? was published in
     the March 2019 issue of
    The American Philatelist. APS members
     may read the article online here.
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   Topical Time cover

   The March/April 2019 issue of
   Topical Time,
   the journal of the American Topical
   Association
, contains two articles on
   Mayan topics on stamps.
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Help/Question Center

"Test stamps"?
Ludwig Scherzler
Can anyone tell me about these stamps? They were offered as "Test stamps". I didn't found anything about them.
Thanks!
 
 
 
 
 

Eric Dyck
These might be trial-color plate proofs. These are printed from finished plates, usually on different paper stock than the issued stamps. The colors of the issued 10c stamps in this design are rosine, dark slate, and olive brown.

Eric Dyck
Librarian and Website Administrator
ISGC
Ludwig Scherzler
Many thanks for this information!
 

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