There was an earlier rumor in London in 1967. The Beatles would certainly have been aware of it.
So what was the meaning of the cover if I am wrong about it?
I think there were ideas floating around for the cover, like Mount Everest and a giant cruise ship etc but they couldnt agree.
It was proposed to just walk across the street on that sunny day and get a photographer, it was easy, cheap and brilliant.
When you think about it they never spent much on covers (barring Pepper)
Ive always loved the cover, in fact I think its my favourite., just shading Rubber Soul & Beatles For sale.