What telescope might this be a model of, with Sir Fred Hoyle?
The photo looks like it could be from the late 1950s/early 1960s. Jodrell Bank's Lovell telescope had been commissioned and people were looking for the next big thing in radio astronomy.

That next big thing was the fixed Arecibo dish, with a diameter of 305m, commissioned in 1963.

It is clear though that the picture is not a (very accurate) model of Arecibo and the location is wrong. I would guess instead that this picture purports to be the design for a radio telescope on the Moon or is an upscaled model of the Dover Heights "sandpit" telescope (see below) built in the 1950s in Australia.