I was a beta tester for the original Mac, as well as in the first Mac Professional Developer Program, introduced at Harvard University as a summer session in '83. I still have my mimeographed partially typeset, partially typed version of Inside Macintosh. It is filled with hand written notes by the original developers, and was copied directly from their copies as they worked to complete the beta version that summer. I had it appraised around the time of Job's death, and the response was it's priceless and needs to be in a museum. It's still in a air sealed box at the moment.