The time around the creation of the first PlayStation was a very interesting period in video game history. If you ever get a chance to look into it, I encourage you too. One of the most interesting things to come out of the time though was news that a PlayStation Nintendo collaboration console was once in the works.
That deal fell through at the last minute as Nintendo were worried Sony had too much power in the relationship and backed out. Before they did though a few prototypes of the console were made, but sightings of them have been a thing of legend.
Although one may have possibly been found in the wild. A Reddit User posted pictures (currently unreachable due to protests on the site) of the supposed console and had a story to match. Take a look:
The poster claims:
My dad worked for a company, apparently one of the guys he used to work with, I think his name was Olaf, used to work at Nintendo and when my dads company went bankrupt, my dad found it in a box of "junk" he was supposed to throw out.
The Olaf in question could be Olaf Olafsson, former president and CEO of Sony Interactive Entertainment. However, it seems weird that your dad's friend, the CEO of Sony would just give you a box of junk to throw away.
I'm not sure I believe this in it's entirety, but if it is real, this is an incredibly artefact of gaming history. I'll update if we find out anything new about the validity of this.