a lot of different stuff. Completely blank slates... no windows
, no interior cabinetry. Usually sold
to contractors looking for a dry, warm/cool place to sleep while on the job. The only thing in the interior was the cabinet across from the door... to hold the ceiling up.
They also sold a few motorhomes and very, very small trailers... the kind to haul behind motorcycles. If I can find that pic, I'll post it.