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SCOTT NO
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512 A184
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DATE OF ISSUE
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1951 Apr 25
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FACE VALUE
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40g
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COUNTRY
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Poland
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DESCRIPTION
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The stamp shows Marie Sklodowska curie, discover of radium.
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VARIATION DESCRIPTION
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This envelope was issued on the occasion of the First Congress of Polish Science.
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MINERAL
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Radium, Scientist
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VARIATION
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Block, Envelope
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