Do you have any other photos? Do they turn on at all? My modern set of LG just died (both washer and dryer within a month of each other) and I miss having a vintage set.
My aunt and uncle lived in a large mobile home that had 4 bedrooms and 2 bathrooms in the early 1960's. They had a set of these stacking Westinghouse machines. I remember them doing a very good job, and the dryer could run on 120 or 240 volts.