The
Sun Type 5 was IMHO maybe the most beautiful mass-produced keyboard that ever came bundled with a computer as standard — expensive 1990's workstation or server computer that is. Sun had spent money on good design.
Disappointing rubber dome switches though, although AFAIK there was a third-party clone that had MX switches.
BTW. Later when the USB HID protocol for keyboards was designed, Sun had influence enough to get every key on that keyboard be part of the standard report format, and not relegated to any extraneous "Media key" packet or something.
There are also several interesting examples listed in
https://deskthority.net/wiki/Category:Big_terminal_keyboards on the Deskthority Wiki.
(People wouldn't have added them to the WIki if they didn't find them interesting or significant in one way or other
)