I recently found 2 8in.x100' rolls of Azo F1 paper at a garage sale. The boxes are unopened but the corner of one is damaged. The expiration date is 6/64 so needless to say I will be doing some experimenting. It might just be the thing I was looking for to print up some old Cirkut negatives that I have. Time will tell...waiting for a new order of chemicals, etc. from Freestyle.