Truely Original

Photographic art differs from many other kinds of collectibles with the way pieces may be duplicated. One film negative (or slide for that matter) may be used to produce an unlimited number of (almost?) identical prints. The piece of film is actually the original artwork but as such not very enjoyable as visual artifact. Digital original take this aspect one step further. Imagine if they had prints-on-demand kind of web services some 50 years ago, like Red Bubble, Moo, Deviant-Art etc. In fact, the only truely original photographic art prints are polaroids.
Check out this polaroid self portrait of Andy Warhole taken in 1977.