...hmmm
..ya can't beat a 5 1/4 " floppy...
A functional Macintosh 128k prototype has been put up for sale on eBay, complete with rare "Twiggy" 5.25in floppy drive, original keyboard, mouse and power lead. The only non-authentic thing here is that the seller, who calls himself 'Woz', isn't actually Apple co-founder, Steve Wozniak - a fact he's happy to highlight - but …
They did - I've got one in the loft, the college I worked for had all the Macs upgraded which involved a new motherboard and new case - the ports were in different places - and one ended up in the back of my car.
Wish the rest of them had too, you don't see them on eBay very often...
The Mac Plus also has signatures, as I recently observed while fixing my own.
It is an interesting piece of history. If it is the same Mac, it wasn't left in a bar, apparently the history is thus:
"I bought it through an online ad. The elderly gentleman I purchased it off of is a retired engraver. The company he worked for was hired to make some award medallions for a ceremony at Apple. It would have been some point in 1983 I personally think, but he really couldn't recall. They sent over this Mac to use as a model for him to work off of. When the job was done, they tried to make arrangements to send it back. Apparently after several attempts, Apple just told them to keep it.
He knew what he had, and knew the price he was asking was low, but didn't want to deal with trying to market it. He was really just happy it was going to someone who knew what it was and would appreciate it."
( http://www.applefritter.com/content/macintosh-128k-prototype-twiggy-drive#comment-63578 )
At the very least, if it is a protohack, it is an interesting variant of the compact.