Are these California chips? The HPC chip (small key mold) has lettering identical to the Huntington Park Casino shown in Dick Staeffler & John Kallman's on-line California Card Rooms guide, but it lacks a denomination (the only chip they show is a black $10). This chip has the same design on both sides - no denomination in either place. It is hot-stamped gold, although it is well worn.

The DR chip has the same lettering style as the DR chip (Citrus Heights, CA) in the Calif. card room guide, but it has inserts and is an entirely different mold. The current manufacturer of the mold says it cannot be hot-stamped, but this one is hot-stamped gold.