VINTAGE 1920'S - 1930'S NATIONAL ELECTRIC SHOCK-PROOF CONTROLLER NO 4418 For Sale

The Vintage 1920's-1930's National Electric Shock-Proof Controller No 4418 is a rare and unique collectible from the United States. This medical device was manufactured in the 1930s and is a valuable piece of history in the field of medicine and dentistry. Being shock-proof, it likely had a specific function related to electrical safety in medical procedures or equipment. With its authentic design and originality, this controller would make a fascinating addition to any collection of vintage medical devices or science and medicine artifacts.does have wear from age. untested PLEASE SEE PHOTOS ABOVE T51