We had a long thread about the Long Tom and High Sprred Tractors not too long ago and info was provided about the different tractors and what they pulled.
Aferg is, of course, correct the "Medium" tractors (basically medium dozers without blades and fairly large winches) were used to move around big guns. A slightly smaller dozer was used to move around planes and had no winch.
But back to the the original comment on this thread, I found (on eBay of course) a custom made trailer for my Dodge. It is an M series and is probably around 1/16 but it looks good behind my Dodge. Size is right for the 1 ton trailer used in WW2, look is different but we're not fanatics...are we
Pic is on my website, first pic in the "Toys" album.
TTT
Sometimes I am the windshield, sometimes, I am the bug.