Stamps, Polish mathematicians design type
1 to 4 of 4
Poland
postage1982, Nov 23 Polish mathematicians unwmk p. 11.25x11.5
| - | 5z | multi | Stanislaw Zaremba | .20 | .20 | |
| - | 6z | multi | Waclaw Sierpinski | |||
| - | 12z | multi | Zygmunt Janiszewski | |||
| - | 15,00z | multi | Stefan Banach |
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