Flyer Wagon

Thomas I. Dowling, Kenneth Freeman, Nan Lacy & James S. Tippett.  I Wonder Why.  
Canadian Edition.  Toronto:  The John C. Watson Co., Ltd., 1952.

Putting dirt in it!  Didn't they know what these things would be worth someday?

It's iconic:  the Radio Flyer Wagon was inducted into the National Toy Hall of Fame in 1999.