Whether or not you find the right code, and there were many, really won't be of that much use to you.
That's because the many, many variations in processing and storage move the mask (that orange stuff) in unique ways. I'd start with RIT off of one of their Web pages was a listing of film codes. At a guess it was 70% comprehensive. But it would be a start.
I can tell you, if you haven't already guessed, that you've got 400 ASA speed film and it's most likely Kodacolor.
Good luck!
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