Vintage Models set of 15 Cars, 4 Motors 2 w/Stand, 6 People lot #11

Not sure of age but my dad built them either in the 50's or 60's to the best of my knowledge. This lot also has some that may have been built in the 70's. There are some lose parts. They are a bit dusty, I didn't want to break them with my clumsy hands. This is lot # 12. 4 people sitting in cars and 2 free steading. 15 cars and 4 motors.