An elegant and stylish c. 1900 silver over 18K gold openwork brooch / pin designed as a large butterfly in Art Nouveau taste embellished with numerous old rose cut diamonds.
The brooch is marked on pin guard and on pin with French owl and swan shaped control marks for imported silver and gold jewelry.
Size 44 mm (1 3/4 in.) x 37 mm (1 7/16 in.)
