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SCOTT NO
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433 A92
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DATE OF ISSUE
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1979 Nov 26
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FACE VALUE
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4c
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COUNTRY
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South West Africa
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DESCRIPTION
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The stamp shows topaz. Its name is derived from an island in the red sea. The coloring agent is iron & chromium. Care must be taken during polishing & setting because of the danger of cleavage. It is not resistant to hot sulphuric acid.
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GEMSTONE
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Topaz
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VARIATION
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Meter Mark, Block, First Day Cover, Envelope
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