Yep, that's an Avro 707, part of the Vulcan project - there were about 4 or 5 I think and several variants - the B had a dorsal air intake aft of the cockpit and presumably exhausts under the fin (pics I have aren't clear!). Your pic presumably depicts the 707A.
There is also a pic in my book of a Swift with two Vulcans and at least three 707s formating in the background!
Couple survive in the UK and one in Oz I think.
(Edited to say four of you so and so's psoted while I was composing my answer!)