| Postal stationery | Postal cards | Poland | 1979 | ||
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50th Anniversary activity of Warsaw Zoo. 10.08.1979 | ||
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| Cp 731 | ||
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Stamp: 1 Zł, green and black. Head of Wisent is part of the total image. Inscription is Warsaw Zoo. | |
Illustration: Wisent. Inscription on Polish language: 50 years of activity. Size: 148*105 mm | ||
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