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| Primitive Rock Paintings of the Ned. Antilles - International Society of Postmasters, Series 1977, Silver proof medallion, Franklin Mint. Rock paintings are designs inscribed on rock surfaces and huge stone monuments in many parts of the world by primitive people. These pictographs, made with charcoal and earth pigments mixed with grease, gum, or water, vary from crude outlines to fully developed polychrome compositions. |
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