Yeah, you are totally correct; I forgot about that!
Originally Posted by Emulsion
It WAS actually used by the Kinora amateur motion picture camera in the 1910's. (see here http://courses.ncssm.edu/gallery/col.../exhibit05.htm)
The camera used a friction escapement, no perfs, and the resulting paper negative was oiled, contact printed onto another band of photo paper to make the positive and then cut out each frame with a die to make a circular flip book that mounted on hand cranked base with a stereoopticon-type viewer.
If you think about it in those terms, paper IS probably the most stable base with a close second in nitrate...