Seen on Yahoo Auction, a Pippin prototype (probably a Power Player). The console sold for ¥26,500 (just under €200).
Some quick tips for easily recognizing a test console: the front markings (Atmark and PowerPC) are not embossed—they’re just stickers. The marking on the back also doesn’t indicate the model (leaving an empty space). There are also often stickers underneath the console identifying it as a pre-production unit.
A sticker
No markings
Prototype unit
