This photo was taken on 12 April 1954. It shows construction work on a new stand at Brighton Racecourse.
The photo was taken by a local company, Deane & Millar, who were often commissioned by Brighton Borough Council to record construction or demolition projects.
Usually these types of photographs do not contain people, as the images are required to focus on the structure. But in this case we can see three workmen carefully stepping across the structure. Thankfully, it does not seem to be a windy day…