In the Archives, specialized workers still use the old nineteenth-century artisan techniques in printing from the historical glass plate negatives. The prints, also tinted in sepia, gold, platinum and in various monochromes (color before the invention of color), are contact printed using bromographs, creating faithful copies on high quality photographic paper, manually and one by one. This manual technique of reproduction is the same used during the 19th century. It permits images of remarkable sharpness in any size. From the 21 x 27 cm (8.27' x 10.63') size of the negative, a contact print is inserted in a elegant passpartout, mounted on wood or in a beautiful wood frame. The prints can be made up to 70 x 100 cm (27.56' x 39.37') or even, on request, mural size.