Only two ever made the other has been restored by S.F.Market St.Railway.This one stored over 30 years in bay area,a priceless piece.Ian recognized the challenge took it on and delivered.Don't get better than that.We plan to restore the pusher and put it on display.This vehicle was built in the late 20's and is powered by a modle A engine.It is 4foot wide 5foot long 6foot tall and was used to push cable cars in the barn when there was no cable to grip.It resembles a S.F.Cable Car.