HaegerAshtrays.com
No. 2073
Ashtray 8" circa 1973-1980, unidentified glaze, photos courtesy RDsCollectibles65 on eBay
Note: 2073 and 2073-X appear to be the same design and an example marked 2073-X is not known. Both are listed in catalogs 1973-1980.
Bottom reads: ROYAL Haeger © 2073 USA