CV | Sony PlayStation 1 Pre-production Prototype Controller
Nintendo PlayStation: Ultra-rare prototype sells for £230,000 - BBC News
IGN - The “Nintendo PlayStation” prototype was developed as part of a potential partnership between Nintendo and Sony to play both SNES cartridges and CD-based games, but it never entered mass production.
Killing Time (Prototype) (USA) PSX ISO - CDRomance
Wave 2 of Project Deluge Brings PS1, CD-i, and Saturn Prototypes | TechRaptor
PlayStation 1 (Funktioniert + alles dabei) in Bremen - Huchting | Playstation Konsole gebraucht kaufen | eBay Kleinanzeigen
Is this some kind of Playstation One prototype? - Prototypes - AtariAge Forums