2000 inlay Horseshoe hub chips shipped to Rigdon and Co, Cincinnati, OH in 1958.

There are no Rigdon records to show who they sold them to.

I am surprised someone hasn't come along and said they are Golden Horseshoe on Madison St, Covington, KY.
I've seen it posted many times. I always post the below!!!!!

THEY ARE NOT, Golden Horseshoe. It never had table game gambling.