Koplow d20s out of West Germany were the first "tumbled" (round-edged and glazed) polyhedral dice marketed to the hobby gaming community: in three colors, circa 1980, along with their iconic pipped d8. #dice #rpg #dnd pic.twitter.com/o6swpoPg0q

— Jon Peterson (1971-1997) 👻 (@docetist) October 16, 2020