Based on Al's opinion, I have some rare chips from Ballys and Gold Strike, Robinsonville, MS, the first .25 cents with 2 versions of it from Ballys and the first 2 tables of roulettes A and B from Gold Strike has the spelling ROBINSVILLE, may be an error, but not rare as all were made that way. lot of Ebay sellers like to call them rare in their listings, but are COMMON.