1993 IBM model M (1391401) Manufactured for IBM by Lexmark 21-DEC-93

Description

 

part#1391401
serial#8889321
date21-DEC-93 (27 years old)
IBM logoblue logo on gray background
conditionkeyboard is used equipment
originMade by IBM
cableremovable SDL, coiled cable, ps/2 connector (used 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.

Has a couple of indelible marks on the front case that were not easily removable by normal cleaning (see photos).  SDL to ps/2 cable has only one right clip on SDL end, but still works to retain SDL plug inside the keyboard port.

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Additional information

Weight7.1 lbs
Dimensions24 × 12 × 3 in

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