You are bidding on a Western Electric type 111 A audio output transformer. It is from the 1920s and typically used as the output on Model 7A and 14A amplifiers, which used 216A tubes. It is in clean condition, but some of the terminals and damaged, one with just a replacement wire protruding. I am unable to find the specifications, but it is good. With my meter, the low side measures roughly 150 ohms, and the high side 750 ohms, with a centertapp. So, is a good usable transformer. In size, it measures roughly 3 1/4 inches tall and 1 ¾ by 2 inches, in cross section. It is a high quality transformer that should be great for a Western Electric tube amplifier project. Shipping weight is 1.5 pounds. Please see my other auctions for more interesting radio and audio items, and tubes.