This Marcel Boucher bow brooch is sterling vermeil with a clear rhinestone knot edged with red rectangular glass stones. The pin has a top closure and marked Sterling with the MB Phyrgian cap signature. Dating this from 1937 - 1949, measurements are 2 3/4" x 1 1/2". The vermeil has some wear. Overall the brooch is in very good condition. A stunning bow pin for your collection. Please email with any questions. Thank you for shopping Vintage Indulgence.