These are not car engines, likely class 7 or even small class 8 truck engines. International Harvester was at this plant and they could have a remanufacturing center still here or they just abandoned them. Since they don't meet BIN II they're worthless today.

Any dies left? Those would be worth $$$.

You should send this to Billy and Rick, the ghost of autos past to remind them were they could end up!

You are correct SLS, the balconies were used to move parts that were both produced at the plant and came in from suppliers. Compact multifloor assembly plants, like this, are highly inefficient this balcony type system was likely an effort to make the system more efficient. Clearly that did not work.

Occam's razor:
Every plant had a doctor and nurse on duty during operations. This stretcher was likely used to carry injured workers. It shouldn't be surprising that Studebaker purchased a cheap army surplus one. It has nothing to do with production of WWII trucks, amphibs, or such.