SOLD Belonged to my Uncle who passed away and left an enormous amount of really old shop equipment to me to sell......I'll be posting many more items as I can This is from the early 50's, although patents on it go back to the 1930's. I believe it is complete and operable although I have not tried to use it. I'm told it only works on steel wheels, not alloys. Happy to provide more pics as required
Update: I plugged it in and the motor spins up fine. I don't have a car with steel wheels, but I put it under one of my cars and it spun the tire up like gangbusters!