At the end of the nineteenth century a quiet agrarian corner of south-western Spain became, almost within a generation, a frontier of the industrial age. Foreign capital and the mining companies turned Huelva into a crucible of cultures unlike any other in the country, and these photographs are what remains of it. Look closely: the open-cast pits and the lawn-tennis courts, the smelting heaps and the luxury of the Hotel Colón, the British staff at their sports and the workers at the ore — a vanished world caught in black and white, and saved from forgetting.