It is the first prototype hand wired by Steve Wozniak.Steve used point to point soldered wiring rather than wire wrap because it was easier to follow the wiring once built up.
The prototype is shown in an early video by Steve Wozniak himself (Video section of this page). In an interview Woz talked about th upper board you can see in pictures. There are 4 white 2 KB EPROMs and that's how he developed BASIC and other routines of the Apple-1
At one time in Apple Computer's History display - Woz indicates that the current location is unknownIt is possible that a second unit was built - Woz's memory is hazy about number he made.An early Apple employee mentioned that there was a fire in Woz's garage at one point, and it may have been destroyed.
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