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Source:
Colnect
Issued by:
Guyana
Function:
postage
Date:
5/3
/
1990
Issue:
150th Anniversary of the Penny Black / 500th Anniversary of Thurn and Taxis Postal Service
Denom:
$20
Color:
multicolored
Design:
De Havilland DH-4
Watermark:
unwmk
Perf:
14.25
Catalog value:
Prev:
$20 d=Douglas M-2
Next:
$20
External links:
Colnect 631328..he_Penny_Black