Made by Louis-David and Jacob-David Duval /Луи-Давид Дюваль и Яков Давидович Дюваль/ in St.Petersburg, circa 1760.
Gold, silver, diamonds (9.11 carats).
Size 50 x 35 mm.
Gold, silver, diamonds (9.11 carats).
Size 50 x 35 mm.