MR. LUCKY -- "Mr. Lucky" three times, and a pair of dice three times. Not a registered casino mold. Rather recent vintage. A number of times in the 1980's I met Irving Cohen, who sold and rented these chips and gaming equipment from his home in Laurelton NY, a section of NYC in Long Island. (Irving , who was in his 60's then, said he ran junkets, claimed to have won a California gambling ship in a Las Vegas craps game, that the 1943 Cary Grant movie, "Mr. Lucky," was named after him, and that he started and ran the Las Vegas' Monte Carlo/Sans Souci/Castaways till he sold out to Howard Hughes.) Last I heard, he relocated to Florida. Bill Borland's World-Wide Casino Exchange, Las Vegas NV, was selling these 7 gram "durable plastic" (nice clay feel, anyway) chips in 1990, at least.