Nice question, but can't help. ... .... Here are my Agua Caliente web pages tghat were mentioned in the OP (first post):
http://www.antiquegamblingchips.com/AguaCalienteChips.htm
http://www.antiquegamblingchips.com/AguaCalienteMorePics.htm

Robert
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Joseph Calleia, Jean Harlow and Spencer Tracy (l to r) in "Riffraff" (MGM, 1936). Note the dice in Tracy's hand. In small print on the lobby card, Calleia is saying, "Don't you know when you're licked. Quit before it's too late." I own this lobby card.
http://www.antiquegamblingchips.com/lobbycard2.htm