Posted 3 years ago
Recently came across this charming pin and the maker's mark was unfamiliar to me. Some research told me the bull's eye with trefoil mark belongs to RI jewelry manufacturer, Ostby and Barton. The hinge and "C" clasp appear to be early 20th century and the stones not identified. Interestingly, 2 of the stones appear to have been set upside-down - possibly an unskilled attempt to replace them in their setting when loose or fallen out.