10th International Mathematical Congress issue of Austria
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Short desc: 10th International Mathematical Congress
Issuer: Austria Date: 9/14/1981 Occasion: International Mathematical Congress / 10th International Mathematical Congress Consists of 1 stamp: (See stamps as list) 4s d=Impossible Dice Construction by MC Escher 1898-1972 All are perf=14.25x13.75 |
