I believe this to be a prototype, but how does something so secretive like this get out into the wild? It's not like Apple just throws them away, is it?
Nothing unusual; happens with some regularity. Ways it can occur:
- Employee takes it home, Apple ends up not doing an audit and demanding it back. Employee eventually sells it at some point. Or gives to a relative or friend who later sells it.
- VIP journalist gets an early copy for evaluations and perhaps loses it (or 'loses'...)
- Engineer with a copy dies and estate, not knowing what they're looking at, sells it off
- It ends up in a dusty storage shelf in a closet somewhere and eventually it's cleaned out and sold
- Third party manufacturer rep takes or "loses" a prototype -- common in SE Asia (so they can make some money selling it to the highest bidder, often an interested competitor)
I once bought an Apple IIGS main logic board and then realized I was looking at an engineering prototype (late into their testing) because it had special type of socketed EPROM chips so they could easily flash new PROMs as needed during testing, amongst a few other hints about its prototype status. The production boards didn't have them; just regular ROM chips directly soldered on and had some other changes.
Another time, I bought two Apple IIGS logic boards (to serve as spares) for $2.74 each off eBay from a school district in Kansas selling them off. The secretary who put them up for auction said they were emptying out their "ancient junk" from their authorized Apple repair supplies, as they obviously had not been using Apple IIs for many years and were required to make a good faith effort in getting some money for them. Upon receiving them, I was
very startled to see they were still new-in-box boards in the original sealed plastic cover in the original apple authorized repair boxes, having never been opened even once since it left the factory over 20 years ago.
In both cases, the seller was totally oblivious to what they had (and I didn't know until the transaction was final and received the shipment).Things like that is how 'interesting stuff' can eventually become public.