I processed two rolls of TMX circa 1993 this evening, normally, in the same tank with a new roll of TMX. The old rolls showed a bit more base fog, but otherwise not too bad. I have a few more rolls from that batch, so I might use them for something not too important and process with an anti-foggant.(posted 8626 days ago)I guess the lesson here is that you never can tell, and a lot will have to do with how the film was stored for the past 35 years. Try a clip test before developing the whole roll.