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GEOLOGY ON POST STAMPS |
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GEOLOGY ON POST STAMPS |
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Czad / Chad
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Na
znaczku bornit, na bloczku m. in. diament, fluoryt;
bloczek wydany w roku 2003.
Bornite (on the
stamp) and diamond, fluorite etc on the block; the block issued 2003.
Coll. A. Kozlowski
