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USSR - CIRCA 1969: post stamp 3 Soviet kopek printed by USSR, shows Polikarpov Po-2 (U-2), flight instruction aircraft #301563840
Description
USSR - CIRCA 1969: post stamp 3 Soviet kopek printed by USSR, shows Polikarpov Po-2 (U-2), flight instruction aircraft, Soviet biplane, nicknamed Kukuruznik, NATO reporting name "Mule", circa 1969
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