Pre-Production ADB Mouse for IIGS
This wedge ADB mouse has features that are consistent with a pre-production evaluation item sent out to developers prior to the release of the Apple IIGS in September 1986. There are no labels, stickers or markings showing model or part number on the plastic case inside or out, the plastic is a lighter cream color and in general smoother than a production unit, and the date code on the PIC inside indicates late 1985.
Some use is evident. No cleaning done.
Two slider pads, black retaining ring with gray roller. Shiny screws. No label.
No markings on the plastic inside.
No markings on the plastic inside.
ALPS Japan circuit board. PIC date code is 8545.
“KN HR08601” on circuit board.
Molding details.
Apple logo on front of connector. Much more texture than the mouse case.
No raised part number on back of connector.
“2” on inside of black ring.
