Don't see many of these!
And not in that condition which is pretty good for a machine that is probably over 30 years old - it is a tad pricy though.
This was pretty much the last gasp of the Rolls washing twin tub which first emerged in around 1958/59 and was actually based on a Dutch design.
The machine has a circular tub with a round pulsator offset to one side on the bottom, with the drain to the pump offset on the other. Water recirculates all the time the motor is running although this is more of a cost saving (and not unlike the Hoover in that respect) as there was no filtration.
Lance's machine in the video is much older, but the washing function was more or less exactly the same