The editioning of prints and photography was not widely practiced or expected of photographers before the 1960's, especially in Cuba. Therefore many vintage Cuban photographs have uncertain/unknown edition numbers (open editions). However due to the thin fragile negative paper and humid climates in Cuban, negatives were rarely capable of preservation after around 50 prints. The negative paper themselves often became far too fragile to use further. In addition, without a photography studio or dark room, and in the turmoil of the Cuban Revolution photographers such as Korda, printed their work in bathtubs and sinks. The printing paper available to Cubans was limited until the 1990s. Therefore differences in paper, pigment and photographs are all relative to and indicative of the given political & social status of the Cuban government at the time the photograph was printed.