found on https://www.tumblr.com/reblog/133073326130/j8y9aXHJ
The Latil trucks/tractors were originally made to tow 155mm guns, but they were retrofitted to accept heavy-duty winches to support the observation balloons used by the 20th Balloon Company. The Latil company would later be absorbed into Renault.
Only 50 of these trucks were made specifically for the AEF during WWI. They were outfitted with Cachot power winches (seen in the rear of the head image) to retract the balloons after observation was achieved.
fascinating moment in vehicle history, those heavyweight rims, solid rubber tires, and hot air balloon basket under a blimp