Apple Adjustable Keyboard 1993
The Apple Adjustable Keyboard came out in 1993.
It is a failure. It's one of the worst keyboard possible.
The key switch is Alps SKFS.
It's huge, clunky, with lots of tiny buttons that are hard to press.
This keyboard (1993) is in the era where Steve Jobs was not around and Apple is struggling to survive. (Steve Job was ousted in 1985 and came back in 1997).
See also: Vintage Ergonomic Keyboards