Radio Rocket Ball Bearing Vintage Metal Wagon

I only know that this was given to us by a now passed-away WWII veteran who was a dear friend of the family. He was a fantastic neighbor. He never did have children, but had this wagon regardless & was stored in his basement his entire adult life.
If anyone could provide us with some specific information regarding this vintage wagon, we would sure appreciate it.
It has only very small areas of rust -- The worst condition is the section within the wagon where there is some rust and some of the paint has been destroyed and removed. It is also seeming to bubble up a bit in that same area, which I would love to stop the progression of.
Some facts about the wagon: 34" long x 15" wide x 14" high from ground level. It has a 4" depth. The handle is 24" overall -- 21" to the beginning of the handle hole. The tires are 8" diameter, metal wheels with solid rubber.
Wheels are 1 1/4" wide of the rubber.
Axle to axle distance on the bottom is 26 1/2" apart.
Axle is 12" from rim to rim.

Again, ANY information about this wagon would be greatly appreciated!
Thanks so much!!
You can contact us at madinpa@gmail.com
Mark & Teresa