If the tang stamp looks like:
CASE XX
U.S.A.
....
That would indicate 1976 as the year of production. If there's no 'SS' or 'STAINLESS' mark on any of the blade tangs, it would be in Case's carbon steel (non-stainless known as 'CV').
http://www.wrcase.com/case_college/tang_stamps/
If you want to post pics, a photo-hosting service like Photobucket is pretty easy (& free). Upload your images there, then cut & paste the IMG url for each pic into one of your posts here.
David