Identifiying old film

I am looking at a bunch of old 4x5 negs I picked up somewhere along the line and I am wondering if anyone knows of a book or website that has notch codes for film that is no longer made. Long shot, but I thought I'd try.
Thanks!
Matt

Good Morning, Matt,

There are various editions of Kodak publications which gave all the data, including notch codes, on their films. Lots of us still have some of these lying around. Post scans of the code(s) you are uncertain of and someone will probably be able to help. Also, someone with a good memory will probably recognize any non-Kodak codes you might post.

Konical