This luggable of sorts uses the known-about but not common in keyboards GRI KBM-LP switches. There's a really blurry GRI logo stamped onto the keyboard PCB (and the pcb is characteristic of GRI).
Unfortunately I wasn't able to pull out the computer portion, it was quite stuck in the vacuum-formed case (even with all the screws out). And, to top it off, when I plugged it in, fans turned on, one of the keyboard leds turned on...but nothing else happened. Probably needs the system disks (that I don't have).
My guess is that it's from around 1983, though the keyboard may be as old as 1979.
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