Hi guys, These rolls have found their way into my possession. One roll is believed to be un-exposed (the brown roll), while the rest are supposed to be exposed. I'm curious how i can figure out each roll's ISO sensitivity so that i can suggest the proper developing process to the lab technician. I've brought old rolls in before and just said idk try something, and of course it came back blank. So, i'd like to try my best to identify everything before sending them off. None of these rolls say ISO sensitivity. Some suggest a certain developer process on them, but i don't know whether or not that notifies you of the ISO sensitivity, or if that process covers all ISO's. Anyways, if you guys could help me identify the correct process i'd need to develop these, that would be awesome! Thanks. P.S. sorry for the odd picture sizes, just haphazardly threw them together for comparison.