Kodak Photomicography Color Film
I don't know what the 2483 signifies. Anyway, I bought about 15 rolls of this off ebay a while ago. It's a very slow slide film that's process E4 and expired in 12-1985. We shot it at ASA 25 and developed it in cold C-41 chems. Turned out well!
Taken on June 30, 2010