Medallions

• Die-sinking is the art of preparing dies for stamping coins, buttons, medallions, jewelry, fittings, etc. 佚名. 神奇的知识之书.
• In 1800 a Mr. Watt of London produced one, on which he carved medallions and figures in ivory and ebony. 威廉·亨利·杜利特. 世纪发明.

卡莱尔编辑