4c Pan-American, Center Inverted, Specimen Overprint (296a-S). Original gum, single h.r., rich color, small expertly sealed tear at bottom

FINE APPEARING ORIGINAL-GUM EXAMPLE OF THE 4-CENT PAN-AMERICAN INVERT WITH SPECIMEN OVERPRINT.

A total of 173 4c Pan-American Invert stamps were distributed by the Third Assistant Postmaster General's office, and an additional 97 were traded by the National Museum. The majority of stamps distributed by the Post Office Department had the "Specimen" overprint, but some did not. Many have thin spots and/or disturbed gum

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