Vintage American Flyer 75 watt No 2 control transformer for electric train/trains, AC Gilbert

Old American Flyer model No 2 electric control transformer for vintage electric model trains and train sets. It is made by A.C. Gilbert (the maker of Erector Sets). The control is calibrated from 0 to 100 "MPH" and it is marked for 75 watts and 120 volts AC. The brass transformer output terminals are marked for "15 volts only" and "7 - 15 volts". This is an AC (alternating current) transformer.

We've plugged this in and tested with a volt meter and it works well, but it is missing one of the terminal nuts and the power cord is cracked and you'll probably want to rewire this. It measures about 4.5" x 3.5" wide.