N.Y. Gen. Bus. Law § 229-b

§ 229-b. Selling silverware marked coin or coin silver. Any person,\nfirm, corporation or association who makes or sells, or offers to sell\nor dispose of, or has in his or its possession with intent to sell or\ndispose of, any article of merchandise marked, stamped or branded with\nthe words "coin" or "coin silver," or incased or inclosed in any box,\npackage, cover or wrapper, or other thing in, by or with which the said\narticle is packed, inclosed or otherwise prepared for sale or\ndisposition, having thereupon any engraving or printed label, stamp,\nimprint, mark or trade-mark, indicating or denoting by such marking,\nstamping, branding, engraving or printing that such article is coin or\ncoin silver, unless nine hundred one thousandths parts of the component\nparts of the metal of which the said article is manufactured is pure\nsilver, is guilty of a misdemeanor.\n