This 1895 photo was taken by one of the most important photographers of the Qajar era, Abdullah Qajar (1850-1909). In this rare photo, Nasser al-Din Shah is accompanied by his sons, members of court, and most of his favourite and influential slaves. There are 10 African eunuchs in the photo, among them Haji Firouz (the one wearing white and standing behind the king) who was one of the most trusted slaves of the king. Outside one of the royal tents, Norouz 1895 (Iranian New Year), possibly Shahrestanak, Tehran. Photograph: Abdullah Qajar/Courtesy of Pedram Khosronejad/Kimia Foundation 