I first saw one of these at the Hotel and Restaurant Show at the Javits Center in 1983. The model I saw had two of the old Whirlpool/Sears black straight-fin agitators. This is the kind of machine grand houses would install in the "cottages" for their Laundresses. I would enjoy using one of these as my daily driver.
I was going to make a thread about this but I don't need to all thanks for the search tab. I knew UniMac had commercial top loaders like Speed Queen but recently I looked online on their website and saw they don't offer that anymore. But I didn't know this existed and I find it overall very fascinating.