Hello "D"!
Yes, if that is like the ones that where around Reno it should be a Mills mechanism and you should have no trouble in finding parts for it!
I don't know if Mills actually made the entire unit as there was a company called Rowe who primarily made vending machines, Etc. that may have made it!
Here is the only thing I came up with on it below and it was made about 1954 or later!
It has also been discussed here on the Forum before by Freddy Bailey and my good friend Bill Whelan who left us over a year ago, very knowledgeable parties, both of them!
Have fun with it as I believe the mechanism rotates to 6 different positions depending on who was sitting at the "Cocktail Table" and desired to play it!
MONTI