In a moment of insanity, I purchased a 1,000 foot roll of Ilford "Type RX fine grain panchromatic film" with an expiration date of March 1964. Based on other Ilford film I have of similar vintage, it's probably fogged to death, but who knows. Curiosity killed the cat and I decided I had to find out. The problem is -- I haven't a clue what "Type RX" film actually is. Does anyone have any insights on this?