Czechoslovakia 1974 BRNO 74 Stamp Exhibition (2nd issue) perf set of 2 unmounted mint, SG 2171-72
Czechoslovakia 1974 BRNO 74 Stamp Exhibition (2nd issue) perf set of 2 unmounted mint, SG 2171-72
Czechoslovakia 1974 BRNO 74 Stamp Exhibition (2nd issue) perf set of 2 unmounted mint, SG 2171-72