There are 4 parts to the Arrowhead Inn articles. I get several emails a year from people that lived close to the AH and read the articles or had a relative that had been it when open.

The chips you show are generics made by Jack Todd in Kansas City. There are many different colors and centers.

The 6 colors and centers in the below scan were used at the AH for roulette chips. All chips except the JSB C&S were found in a train car on a farm owned by a Nason's sister in Georgia. It had not been opened for years. Her son brought them to me. The train car also had AH silverware, plates, stationary, and many letters from Sam Nason. Sam had been sending her $ for years.
Looks like yours match 3 of them.