Colnect-3484-571-Westland-Sikorsky-S51-helicopter-mail-flight.jpg
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:
Watermark: unwmk
Perf: 14.25
Catalog value:



External links:
Colnect 632331..he_Penny_Black