Spectacular photographs of a Canary Wharf skyscraper being completed have been rediscovered more than 30 years after they were taken.
Amid strong winds, Tony Brien sat in a wooden box suspended by a crane some 250m above east London to capture the images of One Canada Square.
Previously believed to have been lost, the photographs were uncovered during a search of Mr Brien's archives.
He said he was "completely staggered" to find the photos from November 1990.
Mr Brien said he had worked on the Canary Wharf project before when he was approached to photograph the "topping out" of One Canada Square.
"I said 'fine', not realising quite at that time that the only way I could really do it was to go up in a bucket or a crate from the ground which was attached to a crane," he explained.