Beautiful!
That's quite a piece of engineering! Even the motor is beautiful! Both the Dishlex and the Dishmaster look hand-made and built to last a nuclear war. Nice to find a datestamp on there too!
The Hotpoint connection is also interesting, as weren't Hotpoint very late entrants to the UK dishwasher market? She's cleaned up amazingly well, has she been fired up yet?
This Dishlex looks like an early model, the one tested by Which? in 1960 is different in controls, and was only available as a fully automatic machine.
Neither machine did very well in the Which tests, and although I guess the lack of salt and rinse aid didn't help, the wash times strike me as being very short, with a maximum cycle on the Dishlex taking 24 minutes, and the Dishmaster timer models taking just 14 minutes! Modern machines take at least an hour, don't they?