Hello, I'm new here, and I would like to benefit from all of you in order to solve a specific problem. I work at a university archives department and we are facing a dilemma concerning undevelopped rolls of Plus-X and Tri-X that are apparently from the 1950's. I have developped plenty of films as a fine arts student, but always while following a guideline. I have no clue how, if it is even possible, to develop older films without knowing grossly what kind of products and time are supposed to be used. I had found guidelines on Kodak website about the discontinued Plus-X Pan (wich I assume is what I had in hand, considering it said it was made on 135 format; however I don't see the mention «Pan» anywhere on the can, but i'm guessing that it would be assumed) but I am not sure how something from 2002 applied to 1950's films will work. Same for the Tri-X. Needless to say, the cans were not in their original boxes. We are aware that these films may have been stored in conditions that may have ruined them, but since they are part of the estate of a professor we need to at least check what's on them. If any of you have an idea of how to develop these, which product to use, temp. and time, it will be amazing. Sorry for the bad english, it's not my first language.