‘All I wore was my camera strap’: David Hurn’s best photograph

‘This was the Isle of Wight music festival in 1969. We had started to smell and had gone down to the sea to get clean. To do that, you have to take your clothes off. It seemed perfectly natural’Early in my career, I realised that having a well-numbered archive with clear captions was something that would bring in an income for ever. I realised, too, that it was a good idea to go out and photograph unique subjects: the biggest, the smallest, things that were about to disappear. When y