POLAND 1980 Special Cancelled - WARSZAWA 69, 17.I.1980
30 years, the Central Bureau of Design - Construction of Railway Research KOLPROJEKT.
Andrzej Myślicki, Katalog Polskich Stempli Okolicznościowych, Zeszyt 14, 1979 - 1981.
KAW RSW "Prasa-Książka-Ruch" Warszawa 1983.
Catalogue AM#80.009 Cardboard Box
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