1989 IBM model M (1391401) Made by IBM 13 MAR 89


date13 MAR 89 (33 years old)
IBM logoblue logo on gray background.  One of the few blue logo model M keyboards from 1989.
conditionkeyboard is used equipment.  Includes IBM original styrofoam.
originMade by IBM
cableremovable SDL, coiled cable, ps/2 connector (NEW cable, standard length)
key capsremovable (two piece, key stem + key cap)
key switchesclicky = buckling spring
keyboard is used equipment.
conditionKeyboard pre-selected as good candidate and passed initial testing to confirm mechanical condition. Upper keyboard case disassembled and individual 101 keys have been removed and fully cleaned by hand. Inspection of interior plate. All 56 plastic rivets drilled out and replaced with M2 precision screws to restore internal integrity.  Interior plate vacuumed to remove foreign debris. Keyboard re-assembled and re-tested post-cleaning. Individual photography of rear label. Photo gallery of typical restoration workflow.
commentsThis keyboard is tested to work 100%. The keyboard assembly has been confirmed to be in functional, operational condition.
commentsAll 56 plastic rivets have been expertly replaced with M2 screws for ensure for a tight and crisp keyboard feel.

Additional information

Weight8 lbs
Dimensions23 × 10 × 5 in

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