I decided the other day to stock take my film freezer and made a most interesting discovery. About 5 or so years ago I acquired on spec some out of date black and white film I had been assured was well stored. I decided to shoot a sheet before throwing out the boxes and while the BF is marginally higher the actual speed is still spot on. Tonality and uniformity of the emulsion is excellent as well. I'm happy to say I have 100 sheets of excellent quality APX 100 [5x4] The really amazing thing is that the film "expired" January 1992.