"We've had a fabulous reaction from Beatles fans," says Guy White, the director of Snap Galleries.
"We've had all age ranges and people from all round the world coming to see us. As soon as the show went up, we found that all the Beatles and rock 'n' roll tours of London were including the gallery on their itineraries. We've had fans alongside serious collectors," he says.
"His five covers are so interesting because, putting it simply, they show five completely different ways of portraying four heads in a 12-inch square."
The most expensive print on sale is an ultra large size sepia print of Rubber Soul, the only one left the world, which is up for sale at $45,000 (£30k.)
In his coffee table book, The Beatles: A Private View, Paul McCartney is quoted as saying of Freeman's work: "I have a feeling that Bob's photos were amongst the best ever taken of The Beatles."
The exhibition Robert Freeman: Beatles for Sale continues at Snap Galleries, Piccadilly Arcade, London, until March 16, 2013. All the prints are from the Raj Prem collection.