Palladium 上市 Deposited

定義
  • An attempt has been made to utilize this rare element for medallic purposes. A communication to the Revue Belge de Numismatique, 1869 (p. 477), states that Sir Thomas Graham, Comptroller of the English Mint, struck a medal of palladium alloyed with gold, silver, or nickel.

資源
  • Frey's Dictionary (American Journal of Numismatics, Vol. 50, 1916)

人际关系