Sorry for crashing this thread, but who knows how to find the use by date of Ektalure. I've got some 16x20 boxes which I think are from the last run and the serial number is 42401-001DQR 66, though can't see a seperate date on the box. I'm sure when I was using a lot of Ektalure in the early 90s the label always had a date. May well put them up for sale but better find out how old they are. (Probably 8 or 9 years.)
Many thanks