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Show 1 Ancient Decorations 1 Shell, crystalline spar, bone and : ivory were all employed by the an-1 cients for architectural decoration. '. On these hard substances, the col-1 orists could produce excellent de-i signs. The thin film of color, how-j ever, was not durable it soon wore away and light places showed through. Since those days, modern! methods of decoration include cer-j tain mordants to set the colors and the steeping of small articles made from such dense substances in a dye bath for several hours. |