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SCOTT NO
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B304 SP208
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DATE OF ISSUE
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1961 Jun 01
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FACE VALUE
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10c + 10c
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COUNTRY
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Switzerland
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DESCRIPTION
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The stamp shows fluorite crystal. It is a very attractive mineral of varied colors. It has a glassy luster. It turns flourescent in ultra violet light. It is used to produce a fluid slag in steel making & smelting ores.
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GEMSTONE
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Fluorite
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VARIATION
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Meter Mark, Block, First Day Cover, Envelope
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