Vintage JHH Gold-tone Monogram Pin Letter "M"

From the 1960s, gold-tone pin formed as a cursive capital letter "M" with revolver style clasp. Stamped on back "JHH". Size: 5/8-inch H, 1/2-inch W JHH also known as James H Hall Co Inc and Yankee Silversmiths, was a Providence, Rhode Island, jewelry company in business from 1962 to the late 1970s. Pre-owned, in excellent condition.