Plique a Jour Sterling Silver Gilt Pendant Vintage Art Deco c1920.
The silver mark can be found to the bale ring, this reads '.925' for sterling silver. The blue plique-a-jour is in great order as are the pearls please see the pictures.
Size including bale 2.8 x 2.3 cm or 1.1 x 0.9 inches.
Weight 1.8 grams or 1.125 penny weight.