Executive Ashtray 14" circa 1959-1971, Aztec Sand glaze, photos courtesy Jeremy Bellanti on Facebook's Marketplace

Note: 1723 and R-1723 appear to be the same design and an example marked R-1723 is not known. 1723 is listed in catalogs 1963-1971, and R-1723 is listed 1959-1965.

Bottom reads:  HAEGER 1723 © USA