These chips have been sitting in HH's safe for some time.
Recent purchase of the Taylor Co records, IDS the chip as Town House, Reno - 1951.

The RN on the chips stands for Ray Nelson.
Harvey Fuller lists the casino as 1932-55 and as having BJ, craps, and roulette.
Other chips from the Town House are listed in TCR.

The scan does not do the chip justice. It is UNC