Soviet Union 3.50 Rubles Airmail (1931, Without Arrows variety)

Soviet Union · 1931 · 3.50 rubles

A 1931 Soviet Union airmail stamp featuring a stylized airplane or flight symbol, with a denomination of 3.50 rubles and the inscription 'ПОЧТА СССР'.

This stamp belongs to an important early Soviet airmail series, reflecting the USSR's emphasis on developing air transport. The 'Without Arrows' variety is a specific printing variation of this issue.