No person shall make, sell or offer to sell or dispose of, or have in his possession with intent to sell or dispose of, any article of merchandise marked, stamped or branded with the words “sterling” or “sterling silver,” or encased or enclosed in any thing in or by which the said article is packed, enclosed or otherwise prepared for sale or disposition, having thereon any engraving or printed label, stamp, imprint, mark or trademark indicating or denoting that such article is silver, sterling silver, or solid silver, unless .925 of the component parts of the metal of which the said article is manufactured are pure silver.