Interesting ad from the Borg-Warner Norge era. It's interesting that they describe the rollover of clothes happens in a blooming effect, reverse rollover. Just watched a youtube video and sure enough I saw that happening, even though it was very slow going. When more water was introduced then the clothes would reverse and be pulled in towards the agitator. There was hardly any space in the bottom of the tub where the fins were located and the tub wall itself, I could see how this would work. The "wave" agitation really thrashed the clothes back and forth, I would think it would have been harsh on the fabrics since there didn't appear to have much room to move around. The capacity seemed very limited in those washers.
Was there a louder washer?
Just my observation.