It looks like from the photo that you are looking for the pole trailer style frequently found on the West coast, not the big "off high-way" trucks we have/had on the Golden Road here in Maine. An Autocar Constructor is a good stating place for the tractor.
So everyone has an idea of how oversized the Golden Road trucks are/were, for a time in the '80's the companies hauling on that road would run triple trailers (but now it's mostly doubles), 12' wide and 14'+ tall (3.65m by4.26m), with tree length spruce, buts to both ends, and would gross out between 275,000-300,000lbs (125,00kg-136,000kg); compared to the US interstate limit of 8.5' wide, 13.5' tall and 80,000lbs gross weight (2.59m by 4.11m and 36,287kg). As I recall the preferred tractors were Autocar and Mack with a "quad box" (or similar) transmission. They ran all year except during the spring thaw (when the roads wouldn't support a large truck), had the right of way and were a sight to see flying down a gravel road at 50+ mph (80kph).