Whilst going through the darkroom of a long-retired professor, I found quite a lot of old stuff, from obsolete chems to plates and mounts and papers and films.
One thing I found in fair quantity was kodabromide paper. Mostly 5x7" and 8x10" F3 and F4 stuff, unopened and stored in a cool cabinet... probably for two decades or more. Does anybody know what one might do with it? I've never worked with it.
I used the Kodabromide papers when I was a kid. It was a fiber base enlarging paper, available in a variety of surfaces and 5 contrast grades, in single or double weight. The F surface is glossy. At the time, I printed my photos on the #3 paper most of the time. I recall the #2 paper as being rather flat, and the image tone was not as good as the #3 or #4. It may still be usable if it was stored properly since it was new.
Kodak used to put datasheets in their paper packages, paper this old will have them. Open a package under a red or OC safelight, and you should find instructions for using the paper.
There may be some fogging, due to the age of the paper. This can sometimes be cured by adding a restrainer or anti-fog to the developer.
Give it a shot and see what happens, you may be pleasantly surprised.
Hope this helps,
Mike Sullivan