YES • When I was a kid my Dad was an Engineer at Fruehauf Trailer Corp. At that time they were the largest manufacture of truck trailers.
It was an A.C. Gilbert American Flyer, built on two box trailer doors About the size of this photo. It was plywood with a laminated metal on both sides. A Federal Court and the anti trust laws said that they had a Monopoly and broke up Fruehauf, they never recovered.