It might sound like the stuff of daydreams now, but once upon a time it was briefly the very real intention of Sony and Nintendo to collaborate on a console. Nicknamed the Nintendo PlayStation, the idea was that a new CD-ROM format backed by Sony would be added to the cartridge-based Super NES, resulting in a hybrid console that could play both.

The partnership didn’t last long, though, with Nintendo backing out before it ever really got off the ground, announcing that it would instead be working with Philips. Sony decided to make the PlayStation on its own instead, in an act of revenge that you have to say paid off in the long run, and we never did get to see Crash Bandicoot running around the Mushroom Kingdom. Still, the short-lived Nintendo PlayStation remains a fascinating what-if scenario in video game history, and the USA’s National Video Museum has acquired the original development kit.

Codenamed the MSF-1, the device now in the museum’s possession is the oldest known prototype of the console that never was, and according to the Texas-based NVM, likely the only one that still exists. Being a dev kit, it’s unsurprisingly not the most attractive thing to look at, and definitely not something you would guess is designed to play video games if you didn’t know any better. But it’s still a hell of an artifact for the museum to get its hands on.

Presumably very few people outside of Sony and Nintendo would have had access to the MSF-1, but just over a decade ago Engadget was able to test an ultra-rare prototype of what was going to be the consumer product. The same prototype was later sold for more than $300,000 at an auction.