Boston's RR Auction held an Apple-themed auction, in which they sold both a fully operational Apple-1 computer as well as a 23-page handwritten document by Steve Wozniak detailing notes and diagrams for the Apple II breadboard.
The work-in-progress documents were penned in 1975 and included five pages of circuit schematics, six photocopied pages headed "Bus Sources," "System Timing," "Display," "Sync Timing & Adr. Gen," and "Timing," and a 12-page handwritten programming instruction guide consisting of 28 steps.
Wozniak also provided a letter of provenance, which reads:
"These documents, circa 1975, are my original Apple II prototype schematics and programming instructions. They are precious. On these work-in-progress diagrams, you can even see my breadboarding technique, where I'd go over drawn connections in red as I soldered the wires in. At the time, I favored using a purple felt tip pen for writing, so it's interesting to see these notes decades on. The prototype was hand-wired while I was still an engineer at Hewlett-Packard's Advanced Product Division, where I was involved in the design of hand-held calculators."