J. L. REUTTER PATENT ATMOS TWO COLOR MARBLE Atmos, "Pendule Perpetuelle", J.L. Reutter patent, No. 4***, Swiss. Made in the late 1920s. Very fine and very rare, early, Art Deco, black and gray marble "perpetual" clock wound by changes in barometric pressure with early mercury in glass expansion device.

Dial signed "Atmos Pendule Perpetuelle", applied plaque inscribed "Brevets J.L. Reutter S.G.D.G". DIM. HEIGHT 22.2 cm., WIDTH 20.5 cm., DEPTH 13 cm.