I bought a couple of very old boxes of Kodak large format film at the MiPHS Trade Fair last week, $1 each box, and I can't find info on them. The first is 10X12 in., Kodak Fine Grain Positive film, dated 1969. On the box it's describes as a low speed blue sensitive emulsion, to be used for copying, not for general camera work. Development can be done in Dektol, Versatol or D-11. Was this film used to make transparencies for over-the-head projectors? The second is 8X 10 in. Kodak LS Pan film, dated 1970. The number on it is "4160 Thick". I haven't opened either box to see if they contain data or instructions -- both have been opened and resealed. I can't find anything about them in my old 8th ed. of the Photo-Lab Index. Does anyone know anything about the film speeds of these films, or developing times? I don't expect to get very much of an image from either one, but for a buck they were hard to leave. Marty