USSR Exhibition of collection materials dedicated to the Soviet-Polish friendship (Выставка коллекционных материалов, посвященная советско-польской дружбе) |
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Coat of arms of Warsaw - Siren and the equestrian monument to the founder of Moscow Yuri Dolgoruky in Moscow. Text "Soviet-Polish friendship"
The exhibition opened on January 19, 1961. The stamp was used during all days of the exhibition - from January 19 to January 26 - in the post office, opened at the exhibition in the building of the Palace of Culture of the factory "Hammer and sickle". On the last day of the exhibition - January 26 - green mastic was used for cancellation, on other days - black. The exhibition was attended by Soviet and Polish collectors
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