Nevada Coin Mart Silver Ingot. Las Vegas, Nevada. 1 Troy Ounce. 999 Fine. Missing Refiners Hallmark. 999 Fine.35 mm x 13 mm x 8 mm. Though the familiar hallmark featuring an outline of the state of Nevada and NCM are missing, there is no doubt that this bar was produced by Nevada Coin Mart due to the shape and exact font of "1 TROY OUNCE" and "999 FINE" as seen on examples with the hallmark. An interesting error.