Large Portique Mystery Clock
Cartier Paris, 1923
Rock crystal dial, columns and Biliken figure
Coral cabochons, onyx
Square, 8-day double-barrel movement, gold-plated, 13 jewels, bimetallic balance, Breguet balance spring. Transmission axle in rock-crystal crossbar masked by coral cabochon. Billiken ﬁgure removable to provide access to the movement. Arbor for winding movement and setting hands.