Aero Flyer Express all original wooden wagon 1950

I bought this from an estate sale for a pretty penny but I've never seen one so clean , 1950 Aero Flyer Express with original everything, down to the screws and paint, and finish... Very lightly used and was told it was used primarily in this family's basement because of the child having learning disabilities.. anymore information on this wagon would be appreciated, like pamphlets or original price, where made and other interesting facts... My contact info is 301joe@gmail.com thx