Square Divided Ashtray 11" circa 1953-1976, White Stone Lace glaze, photos from the collection of Michael Bono

Note: R-1311, 1311, and 1311-X appear to be the same design and examples marked 1311 and 1311-X are not known. R-1311 is listed in catalogs 1953-1965, 1311 is listed 1967-1976, and 1311-X is listed 1973-1974.

The bottom of this example is unreadable due to the heavy glaze, but the number is assumed to be R-1311 based on the years the glaze was used in production.

Examples in other glazes read: ROYAL HAEGER R1311 USA