Czechoslovakia 1969 Prague Emblem of 1475 3k unmounted mint, from Stamp Ex (4th Issue), SG1754
Czechoslovakia 1969 Prague Emblem of 1475 3k unmounted mint, from Stamp Ex (4th Issue), SG1754
Czechoslovakia 1969 Prague Emblem of 1475 3k unmounted mint, from Stamp Ex (4th Issue), SG1754