Thanks for the post Rich and the clarification between the two different Hamilton operations. I have had these covers from Sloan Service for some time and wasn't sure of their origin since it has the LV PO Box address. Honestly I didn't realize Sloan was a town!!

Below these you will see the 2 examples from Dale Hamilton's "Nevada Stateline Bar" which I had always placed as Jean not Primm, so once again thanks for the post. I may use the B&W photo for a new chipguide entry for Sloan Service Bar which is listed in the Fuller index, 1982-1990. However, I can find no info on the Nevada Stateline Bar?
Eric