The Mason record for these GMH chips shows they were sent to L.D. Sweeney, Hailey, ID, 1938 for use at the Alpine Club in Ketchum.

The full story and Gene's research is in this article:
http://www.marlowcasinochips.com/links/genetrimble/alpineclub/alpineclub.htm

Very recently we were able to confirm that Posey Gruener, George Merrill and Lou Hill were almost certainly the G M H initials.

I have a few sets of the 3 colors below available at $25 a set shipped.
Email me if interested.
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