N.Y. Gen. Bus. Law § 229-f

§ 229-f. Marking metal placed on leather or other substances, coin or\ncoin silver. Any person, firm, corporation or association who makes or\nsells, or offers to sell or dispose of, or has in his or its possession\nwith intent to sell or dispose of, any article of merchandise comprised\nof leather, shell, ivory, celluloid, pearl, glass, porcelain, pottery,\nsteel, or wood to which is applied or attached a metal mounting marked,\nstamped or branded with the words "coin" or "coin silver," unless said\napplied or attached metal mounting shall contain not less than nine\nhundred one-thousandths parts of pure silver, is guilty of a\nmisdemeanor.\n