Per Larry Eastman, the El Monte was located at 320 F Street, Eureka, CA. Opened in 1961 and closed on an unknown date. Per Armin Pfender's 2004 guide, he shows a value of $12/$6. Note: Armin has released a newer guide so my values may be out of date.

The one I show below was used in El Monte, CA and the Mayfair Hotel in New York per Armin. Eastman says they were used in Eureka?