Space-cadet, Lisp Machine Keyboards
This page is a photo gallery of lisp keyboards.
The Knight Keyboard
One of the first Lisp Machine keyboard, called Knight keyboard.
Photo and some info from 〔Knight (TK) keyboard @ http://world.std.com/~jdostale/kbd/Knight.html〕.
This is the famous Space-cadet Keyboard.
For detail and much more photos, see:
Symbolics Keyboard PN 364000
This model comes after the Space-cadet keyboard.
Symbolics keyboard PN 365407 Rev C
This model comes after the PN 364000, and is compatible to it.