University of Bristol - Historical Photographs of China reference number: Ru01-022. The officers are named, right to left (Brand standing behind Brooke and somewhat obscured by a flag). The (British) First Chinese Regiment. Photograph most probably taken in Wei-hai-wei (Weihai).
British officers, with signal flags, 1st Chinese Regiment, Weihaiwei
Black and white photograph
Archives & Special Collections, SOAS Library, University of London