Airway Charlie's collection - bottom LHS - is that a Dial-a-matic?
We had a machine that looked the same as that here, but it was called the Dynamatic. Only sold in one colour scheme, greyish brown with orange front and back covers.
My mother had a blue Convertible, last model with the on/off pedal out to the side, later ones had a button on the body of the machine. Replaced it with a Starlight, very powerful machine but amazingly noisy. At the time we had white shag pile carpet, just what a family needs with three kids and a black dog. The Starlight really groomed that carpet, stood the pile up and made it look clean(er).
I have a couple of Larks but they don't get much use, they ar fun to play with but with only 250 watts, they don't vac too well.
My parents also had a Hoover fridge, would have been early sixties, single door about 250 litres at a wild guess.
Chris