Last “dimer” I actually played with was at Sierra Sid’s in Sparks. Not counting 10c roulette because those didn't have a denomination. I was actually in town when the 10c chip debuted at the Dunes in Vegas for a new game called Dicette, a combination of craps and roulette. The table was never open when I went there, however, and soon disappeared. Didn’t take long before I learned that Bill Borland had the entire supply of Dunes Dimers. As recently as the ‘90’s, I used 10c chips for antes at the Commerce in CA.