Nesting Ashtray 4½" circa 1958, Bamboo glaze, photos from the collection of Michael Bono

Notes:

1. The above information is for R-1821 as R-1821-S has not been found in a catalog and they are assumed to be the same design. An example marked R-1821 is not known.
2. The catalog lists three Nesting Ashtrays as a set:  R-1819 (8¾"), R-1820 (6¾"), and R-1821 (above)

Bottom reads:  ROYAL HAEGER R1821-S U.S.A.