Vintage SIMANCO USA Table Clamp Holder

A vintage SIMANCO USA table clamp featuring a black metal upper portion with a brass-colored lever and two brass-colored rivets. The clamp mechanism is silver-toned metal with a green felt-lined pad and a threaded screw with a black wingnut-style handle for tightening. The side of the clamp is marked '121318 SIMANCO U.S.A.'. It is designed to secure items to a surface. Location: x