Here's a typical mid 1950s rig used in the Eastern states. The trailer is Sheepscot number 95059, a 35 foot vertical rib crop center type to which a refer unit has been added.

The truck has a short wheelbase (141”) for the best maneuverability and least weight. It is part number 95126 modeled for a DC-97T. It has saddle type fuel tanks and sanders. Notice the license plates for interstate travel 55 years ago.