You are looking at a vintage American Flyer #15B transformer. The 15B is has 110 watts of power and one controller. This one has been serviced and tested here at Lone Star Trains and is doing everything it should. It was made 1953.
This one features:
American Flyer's famous "DeadMan's Control"
- Circuit Breaker
110 Watts of Power
CONDITION: Tested and works as it should. Looks nice. Front sticker is more than half worn off (can be boughy repro). Just serviced. Base is in nice shape. Has some wear to back metal plate. Some wear here and there.