Antique c. 1920s Cased Electro-Surgical Light & Cautery Set with National Transformer, Physician's Outfit

A cased early electro-surgical outfit with cloth-wrapped cords, handles, and a nickeled National current controller marked for 110-volt alternating current. Sets of this type powered miniature examining lamps and cautery tips in the office of the 1910s-20s, when physicians wired their practices for the new electricity. In the fitted velvet-lined case.