POLAND 1980 Special Cancelled - KOSTRZYN WLKP., 12.V.1980
III Biesiada Humorystów w Kostrzynie, w 175 rocznicę urodzin Augusta Wilkońskiego.
3rd Humorists' Feast in Kostrzyn, on the 175th anniversary of the birth of August Wilkoński.
Andrzej Myślicki, Katalog Polskich Stempli Okolicznościowych, Zeszyt 14, 1979 - 1981.
KAW RSW "Prasa-Książka-Ruch" Warszawa 1983.
Catalogue AM#80.087 Envelope
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