Dave, I spoke with one of the French guys (well sort of, they spoke absolutely no English!!) and he showed me the vets' signatures. One guy had signed it back in '74 or '84 and again in 2004. They were very proud of those ones!! Note the trailer has been repainted a couple of times, but the signature areas are left original. What a wonderful tribute to the vets!
The trailer is a WW2 10T stake trailer, as used on Red Ball routes behind International and Autocar tractors, but rebuilt post war as a van by the Dutch (on top of the original flat bed floor). I was fooled by it - it looked so WW2 American that I had ventured across to take a whole load of detail photos, thinking I could make a demountabe living van body for my identical trailer. Still thinking about it!!