Czechoslovakia 1974 Graphic Art (4th issue) perf set of 4 unmounted mint, SG 2147-50
Czechoslovakia 1974 Graphic Art (4th issue) perf set of 4 unmounted mint, SG 2147-50
Czechoslovakia 1974 Graphic Art (4th issue) perf set of 4 unmounted mint, SG 2147-50