Czechoslovakia 1976 'Praga 78' Stamp Exhibition (2nd issue - Art 11th issue - Paintings of Flowers) perf set of 4 unmounted mint, SG 2313-16
Czechoslovakia 1976 'Praga 78' Stamp Exhibition (2nd issue - Art 11th issue - Paintings of Flowers) perf set of 4 unmounted mint, SG 2313-16