Once photography had developed far enough to free sitters from the need to adopt fixed poses, it opened up the prospect of capturing the moment. A moment that was unique, a moment that could never be repeated. Three friends in a bar. National Service. The 1950s. I have no idea who they were or who they became - that is the beauty of buying job lots of memories. But the moment has been fixed in time, and now it has been shared with the world.