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A small metal rod drops down into a notch at the back of the drawers on the sides of the commode, locking them in place. When the central drawer is opened, the rod lifts, releasing the side drawers and allowing them to be opened.

Stamped by Jean-François Oeben
French, Paris, about 1760
Oak veneered with maple, tulipwood, satinwood, and amaranth; gilt bronze mounts; campan mélangé vert marble top
3 ft. 1/4 in. x 4 ft. 7 3/8 in. x 1 ft. 6 1/2 in.