Providence Stock Company Vintage Brooch

PR.ST.CO. first listed in the Providence directories in 1890, and produced jewelry up to 1950. An advertisement of 1904 says "Our Specialities are: in gold filled, Neck Chains, Bracelets, and Chain Bracelets; in 10 k solid gold and 12K Gold Filled, Lockets, Brooches, Scarf Pins, Pendants and buttons." 5 purple stones with pearl like center Stamped “pr st co” and a number underneath