I inspected a Yashica 124G earlier this evening which is being sold on ebay. The seller is local and allowed me to pop round and look it over. There was an exposed roll of Tri-X in the camera and the seller let me take it home with me. I'm wondering how old this film may be. I've never shot Tri-X in 120 so I don't know if the backing paper is current or not. The paper is green with yellow text. Film type is "Tri-X Pan Prof. 120 film". Can a rough estimate of age be got from that information? How should I develop this? My only developer is HC-110. Any tips greatly appreciated!