Interzonal World Chess Championship Tournament in Leningrad (Межзональный турнир первенства мира по шахматам в Ленинграде) |
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The image of two chess knights - black and white against the background of the degree grid of the globe, a ribbon with a commemorative inscription
The stamp was used in the post office, opened at the tournament in the premises of the club Dzherzhinsky
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Examples: |
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