Wow, thanks! This is one of my favourite keyboards (mushy rubber dome, but love the extra keys) and I had only found the quick start guide. Had to scrap the meaning of the keys from Solaris manuals and other sources.
At first I thought you had just found those three pages and went looking for the whole thing.
Oracle still keeps a small page called “Sun Type 7 Keyboard and Mouse Documentation” but it lacks this reference manual:
It only has the "Sun Type 7 Keyboard and Mouse installation Guide" and the "Sun Workstation Ergonomics".
https://docs.oracle.com/cd/E19675-01/index.htmlFinally I did find the PDF in a shady website, all 53 pages!
...which turned out to be your 3 pages repeated in 9 languages with some blank pages and legal notices in between.
I attach it anyway for completeness.
Cheers!