I was digging through my stash of odds and ends and came upon a full, unopened box of Ilford Industrial Contact Paper. I was given this many years ago and forgot I even had it. I took it in the darkroom and opened it and to my surprise the paper looks like new. It's not mottled or discolored at all. Whether it's still usable or not is up for grabs. If it is I then have 500 feet of 10'' wide paper to play with. Anybody know much about this stuff 'cause I sure don't know how to really test it. I assume it's a very slow speed paper? JohnW