[La Algaba Filtering Station (1926-1980), designed by Charles Arthur Friend, chief engineer of The Seville Water Works Company, Spain.] 144 original photographs taken during construction, mainly emphasizing the technical and engineering aspects.

144 original black and white photographs, uniformly 6 x 11cm. In excellent condition, in two matching photo albums of worn green cloth, one containing 89 and the other 55 images. Some of the photographs have pencil captions on the mount, giving a date and a number. Loosely inserted is a 3.5 x 8.5cm contact sheet, showing four and a half frames from a film of two men examining a chart. The collection presumably derives from Friend's papers, and while individual workers on the site can be seen in many of the photographs, the primary purpose is clearly to act as a record of the technical aspects of the construction project, with close-ups and long-distance shots, of excavation, pipework, digging, application of concrete, building of vats, metal framework, pylons, chambers, walls, scaffolding, electrical equipment, completed buildings. There is one posed shot of an individual in a hat and white suit, and another of the same individual (possibly Friend himself) sitting on a pipe, and there are twelve photographs of the local waterways, and one photograph of a church interior. Loosely inserted are two copies of a Spanish newspaper article: 'El servicio de aguas filtradas. Una visita a las obras'. La Algaba still stands, and is considered a fine example of regional architecture.