Currently at $1,750 on eBay, this rare Macintosh Portable prototype “ran on a rechargeable battery , included a screen which flipped shut and had an input device.” Click here for more pictures. Videos after the break.

Note that this machine does not currently turn on. It appears the issue is that the lead acid battery (which is original and currently installed) no longer holds a charge, and Macintosh Portables cannot boot without a usable battery.

[via 9to5Mac]