Heisey Saturn #1485 was produced 1937-1953. This pressed pattern is often identified by its internal ring optics. Produced in crystal and zircon, with a few items in dawn. Most items are marked with the "Diamond H".
Imperial Glass Corporation reissued a number of items in crystal from 1958-1965. Some of these items retained the "Diamond H" mark. A 3 oz. Oil in dawn with a crystal stopper was produced by Imperial 1957-1968.
