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


part# 1391401
serial# 2025964
date 13 MAR 89 (33 years old)
IBM logo blue logo on gray background.  One of the few blue logo model M keyboards from 1989.
condition keyboard is used equipment.  Includes IBM original styrofoam.
origin Made by IBM
cable removable SDL, coiled cable, ps/2 connector (NEW cable, standard length)
key caps removable (two piece, key stem + key cap)
key switches clicky = buckling spring
keyboard is used equipment.
condition Keyboard 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.
comments This keyboard is tested to work 100%. The keyboard assembly has been confirmed to be in functional, operational condition.
comments All 56 plastic rivets have been expertly replaced with M2 screws for ensure for a tight and crisp keyboard feel.

Additional information

Weight 8 lbs
Dimensions 23 × 10 × 5 in

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