Czechoslovakia 1960 National Philatelic Exhibition (2nd issue) perf set of 2 unmounted mint, SG 1183-84
Czechoslovakia 1960 National Philatelic Exhibition (2nd issue) perf set of 2 unmounted mint, SG 1183-84
Czechoslovakia 1960 National Philatelic Exhibition (2nd issue) perf set of 2 unmounted mint, SG 1183-84