I am sure it said 79.5 ( I agree its not a standard value) I will try to photograph the nameplate Friday when I return. It has been installed. Clarify mint or maybe real good, no rust, good paint, little scratches or dents. Has a pigtail (Greenfield) hanging on it. It does have impedance on the nameplate. I assume copper, but will also check that. The primary has multiple taps (fixed Sec) The owner was not sure of its history, but the location of much of the other equipment (Printing) in the lot came out of a bldg that was formally a Home Depot. (One of the first in Houston) That was later a printing (Screen) plant.