This is a rare example of Swiss derringer with swivel over under barrels. Each barrel has a pin front sight with "WEBER RUESCH ZURICH" stamped behind a pin front sight and a proof stamped between on the barrels near the muzzles. The frame is brass. Fitted with Gutta Percha grips.

Fine. The barrels have a gray patina with areas of brown. The brass frame has an attractive untouched aged patina. The grips are excellent with a few minor handling marks. Mechanically excellent.