Round Ashtray 7" circa 1959-1971, Etruscan Orange glaze, photos courtesy j1santiq on eBay

Note: R-1894 and 1894 appear to be the same design and an example marked 1894 is not known. R-1894 is listed in catalogs 1959-1965, and 1894 is listed 1966-1971.

Bottom reads:  ROYAL HAEGER R1894 U.S.A.