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WORLDWIDE AIR POST STAMPS AND POSTAL HISTORY
UNITED STATES
Lot # 10 | ** | Scott # C125b
| 1989, 20th UPU Congress, Futuristic Mail Delivery, (45c) multicolored, bottom left corner sheet margin se-tenant block of four, light blue (engraved) color omitted, full OG, NH, VF, C.v. $475, Est. $150-$200 . |