Commemoration of Award-Winning Stamp CPA 3023

Soviet Union · 1968 · 4 kopecks

The stamp depicts a diploma, a silver medal, and a miniature representation of the prize-winning stamp CPA 3023, all against a background with text.

This stamp was issued in 1968 to commemorate the Soviet stamp CPA 3023, which won a diploma, silver medal, and prize at the 3rd Thematic Biennale Competition in Buenos Aires, Argentina, in 1965.