Vintage Metal Toy Marble PinBall Whirlpool No. 790 Brinkman 3 marbles 14x 20

This is an old metal marble pin ball whirlpool game, no. 790 by Brinkman Engineering, Licensed under patent no. 3 metal marbles included(they have rust spots). This game measures 14 inches by 20 inches and was manufactured in the United States.