The Treasures of Bruce Lee: unseen shots of the life and work of the martial arts star - in pictures

Bruce Lee playing with his brother in Hong Kong Photograph: Bruce Lee Estate

A photograph from one of Bruce Lee's early kung fu demonstrations Photograph: Bruce Lee Estate

Bruce Lee was the Hong Kong Cha Cha champion in 1958 Photograph: Bruce Lee Estate

Training for Bruce Lee's first class in Seattle in the early 1960s was highly informal. The location was a covered parking garage, no uniform required Photograph: Bruce Lee Estate

Bruce Lee on the steps of Ruby Chow's restaurant in Seattle, where he worked Photograph: Bruce Lee Estate

Bruce Lee's handwritten and drawn notes on various aspects of martial arts Photograph: Bruce Lee Estate

Bruce Lee demonstrating practical martial arts, Washington University Photograph: Bruce Lee Estate

Bruce Lee's first appearance in Black Belt magazine was as Kato from the TV show Green Hornet Photograph: Bruce Lee Estate

Bruce Lee sketching on the set for Game of Death Photograph: Bruce Lee Estate

Bruce Lee in make up for the Hong Kong film The Big Boss Photograph: Bruce Lee

One of Bruce Lee's handwritten notes for the final fight scene of Enter the Dragon Photograph: Bruce Lee Estate

Bruce Lee training at home Photograph: Bruce Lee Estate