http://www.torranceca.gov/archivednewspapers/Press/1960%20Jan%20-%20Jun/PDF/00000722.pdf

17¢ a pound for rock fish? Bet it had real rocks in it, too!

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PDF]Torrance Press - City of Torrance
www.torranceca.gov/.../Press/...%20Jun/.../00000059.pd...
City of Torrance
Classified Ads can get them for you. Dial FA .... Thursday, January 10, 1957 TORRANCE PRESS Page 27 ... Will not chip, peel, .... DING HOW RESTAURANT.

This ad mentions a banquet room in Ding How . . . but I doubt they had gambling. It's possible the chips were given as a promo item, maybe with take-out meals - redeem the chip for a buck off your next order?