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Formation of the OCC
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Emission of postage stamps by the Regionaler Briefservice Jena on the occasion of the OCC-meeting May 25 - 28, 2007
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Regionaler Briefservice Jena and postmark with orchid with referring to Darwin
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The very first postmark with reference to orchids on the occasion of the orchid-exhibition 1913 in Berlin - page 1
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The very first postmark with reference to orchids on the occasion of the orchid-exhibition 1913 in Berlin - page 2
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Gerhard Leiste is honoured for his activities for the OCC
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