This is a Victorian or Edwardian sterling silver and yellow glass stone brooch. The brooch is simply signed Sterling. It has a C clasp. The yellow glass has dark and light streaks that give it a pearly look. The brooch measures 1-3/8 inches wide. It is in very good condition but does have an age patina that I have not polished. Please let me know if you have any questions. Thanks for stopping by.