KMWhite

I have a Trailmobile wagon patented 1912/1918, it has wooden spoke wheels with metal rims and solid rubber tires, heavy steel frame (7000# capacity). The unusual thing is that it has capability to steer from either end by switching tongue. I can’t find an info on this piece but my dad always said it was used in France in WW1. Any info will be appreciated as to value or collectability, l need space in garage.