You have me wondering. TCR shows Attributed to Wendover, Nv. Off. U. S. does not show a dime chip. The Tcr entry shows all chips for the Gold Rush as Lg-key except the dime? California Guide and On line Guide show ALL chips from Gold Rush in Sanora as HHR. I am inclined to say it is a Cal. Chip. Value? I am told $65 as a cal. chip.....TCR shows as L in average cond.$75-99. By the way I bought this chip from a Cal. expert who is a consultant to many on Cal. chips.