At the used computer store today I saw a beige IBM keyboard that had what I think are mechanical keys. The only identifying marks I could find on it are a badge in the upper left hand corner of the keyboard that said "Personal Computer." The keyboard weighed probably twice what a bubble dome keyboard weighs. It had a knob at each end of the keyboard in the upper corner that, if twisted, rotated out a couple of feet to make the keyboard stand at an angle. It had a coiled black cord with an AT connector at the end. Just to refresh those readers not familiar with it, an AT connector was a circular connector larger than a PS2 connector with five pins set inside the metal circular housing.
I'll probably buy this just because I liked the key action. But I would like to know more about the keyboard.