Art Deco Amber Cabochon French Link Cufflinks

Early Art Deco French Link Cufflinks with Amber Cabochons on Nickle.  All in original, great condition, with a soft aged patina. No damage or losses. Amber, is the sap from Conifers, circa 40M years ago, but they are probably extinct now. The Amber frequently has natural inclusions including insects, but these are relatively all clear. The cut Amber has been done to try and closely match the 4 domes in the set. Europe. Circa 1920.