I bought this as New Old Stock / NOS around 15 years ago, but never really put it to work. At the time, I recall knowing the caps were dead, so I had them replaced, I know I was also reworking it to be ps/2.
At some point I was distracted and lost interest. You can see from the pictures that this is just immaculate condition, save for the connector. I think it's a perfect base for some project to convert this to USB or something interesting.
It is an ISO layout with 102 keys, and while QWERTY, I believe it is a Portugese layout.
Please put this to good use!