Vintage Art Nouveau Guilloche Enamel Locket Necklace

Gorgeous Art Nouveau vintage gilt brass guilloche enamel locket necklace. It had a lovely hand painted rose motif on guilloche enamel base with patterned bronze tone metal and bow accents. Measures 1 5/8 inches on the pendant and 16 inches on the unique patterned link necklace with humpback clasp. This could be earlier than Art Nouveau. The locket opens from underneath the design which is unique.