Ok, so I found some negs from WWII but I don't know what size they are. They are some form of medium format but idk what that means to me. I don't know what size neg tray to use or what size enlarger lens to use. Luckily I have access to my colleges darkroom and I hope that they have what I need along those lines. I don't know any professors and I hope that ya'll can help me out.