This is the Earth Mover from Wannatoys (Dillon Beck Mfg). This was a postwar toy, released 60+ years ago in 1949. This is in wonderful condition, given that it’s six decades old This is approx. 4  1/2” long.

These are hard to find, particularly intact and operational. This is a great addition for any vintage toy, construction, or Wannatoy collection. It also has the hard to find yellow trailer, most were blue or green.