I still have one car similar to this from the 50's. I have not looked up the exact variation but there were several slightly different cranes made in the 40's and 50's.
The step sons have a box with 2 engines and a bunch of cars, tracks, and controllers that were handed down from their grand father. I don't even know how old they are. The box has not been opened in 20 years. A few are still in the original box. $$$
