Czechoslovakia 1971 Graphic Art (1st issue) perf set of 6 unmounted mint, SG 1930-35
Czechoslovakia 1971 Graphic Art (1st issue) perf set of 6 unmounted mint, SG 1930-35
Czechoslovakia 1971 Graphic Art (1st issue) perf set of 6 unmounted mint, SG 1930-35