negatives from Camille and Pol Aschman covering news items from 1935 to 1988. In 1992, Remo Raffaelli — who had worked together with Jacques Bohler, a photographer with Républicain Lorrain and Tageblatt — donated 40,000 negatives related to newspaper articles on sport and culture between 1976 and 1988. In 1994, Pierre Bertogne enriched the holdings with a further 16,000 images taken during the 1930s and 1940s which include photographs of Luxembourg's occupation during the Second World War and its subsequent liberation. Martine Theisen, who has been at the Photothèque since 1989 and has held the post of director since 1998, explains that most people come to see the older pictures which remind them of the city as it was when they were children. Efforts are still being made to build up the collection in order to ensure wider coverage of the city and its history. Among the ten people working at the Photothèque, there is also a photographer who is regularly assigned to keep abreast of changes in the city's development. In relation to digitization, Ms Theisen explains that it has not yet been possible to find a firm capable of handling such a large assignment under suitable conditions. Efforts will however continue in this direction in the future. Classification Each photograph is initially registered with a numerical code showing the year of acquisition, the number of the album where it is held and its sequential number in the acquisition records. In addition, catalogue cards give a detailed description of the work, its origin and author, the date when the photograph was taken, as well as information about the negative and applicable copyright. These details are kept together with the corresponding photograph in metal-backed albums, each containing between 25 and 30 documents. The negatives are stored separately in chronological order with codes identifying the album in question. Works of special historical value are removed from the collection for safekeeping and replaced with copies. The alphabetic index is based on pertinent items from the description of the photograph. Publications and copying service Since 2000, four books in the series "Les trésors de la photothèque" have been published. Each volume presents the work of one of the Photothèque's best represented photographers. Those published to date cover Pol Aschman (photojournalism from 1935 to 1988), Marcel Schroeder (local history up to 1999), Théo Mey (photojournalism from 1950 to 1980), Tony Krier (reportages from 1939