Art Deco Style Black onyx MOP marcasite vintage R sterling silver ring size 7 cultured pearls They are stamped on each

They are stamped on each side STERLING and GERMANY

There is no moving mechanism present

Lever clasp

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Art Deco Style Black onyx MOP marcasite vintage R sterling silver ring size 7 cultured pearls They are stamped on eachArt Deco Style Black onyx marcasite Mother of pearl vintage R sterling silver bar ring. Good used condition with little to no signs of normal wear. Stamped 925 R on the inside of the band. Great vintage patina. No missing stones. Acid tests positive for sterling silver. Ring measures size 7