1919 Boston to San Fransisco and Return via Lincoln Highway.. Goodyears pioneering work of trucking expeditions to get roads made, and goods transported by trucks and tires, instead of railways

I don't recall seeing a film from this long ago with such a great variety of trucks, flatbeds, busses, and heavy haulers

I posted about the expedition http://justacarguy.blogspot.com/2015/03/it-was-april-1917-and-goodyear-set-out.html