rhodium plate stamped on 1940s cutlery handle rhodium first used in 1930s for cutlery sets,

1930s 1940s 30s atomic background chemical chemistry closeup coated coating colorful cutlery detail element elemental estate first hallmark handle jewellery makers many mark mendeleev metal multicolor multiple name natural nature piece plate plated plating properties rhinestones rhod rhodium science sets shell silver stamp stamped still substance symbol tone used vintage