Theodor Fahrner Art Deco Silver Necklace

Necklace, end of the 20th century
Maker: Theodor Fahrner, Pforzheim
Dimensions: 1.77 x 1.26 in (H x W)
Material: gilted silver, Amazonite, Onyx, Lapis lazuli, blue enamel
Marks: Makersmark TF and 935
Literature: Theodor Fahren Schmuck, Site 214, Platte 2.122.
Estimate: 3500-5000 USD