> Due to VSXXX-GA is a VAX mouse, and VSXXX-GB is a Personal
> DECstation mouse, i
> would think, this is some kind of "input device". Maybe a
> Dials-and-buttons-Box
> for 3D graphics, SGI has such hardware. The 8 LEDs sound like
> there is some
> kind of VAXstation mainboard inside, the VAXstations usually
> have this kind of
> diagnostic output. But 1978 is a bit very old for hightech
> graphics hardware.

Opps, I ment 1987.