1987 IBM model M (1391401) Made by IBM 18 AUG 87

Description

part#1391401
serial#2385519
date18 AUG 87 (32 years old)
IBM logoblack logo on white background
cableremovable SDL, coiled cable, ps/2 connector (used cable, long length)
key capsremovable (two piece, key stem + key cap)
key switchesclicky = buckling spring
Designed when “real” typing on a quality keyboard was a required skill to use a $4000 IBM personal computer. PC Mag link
(pre-dates the then new mouse-click and graphical user interface operating system later to be known as Microsoft Windows 3.1 and 95)
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.
comments
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.  Heavy galvanized steel backplate.

Keyboard front case has an interesting IBM Excellence paper sticker and “HOST KEYBOARD DEFAULT EQUIVALENTS in OS/2 REL. 1.2”.  Interesting bit of computing history, but end user could remove these stickers if they wanted with Goo Gone or other adhesive remover.

 

Additional information

Weight8 lbs
Dimensions24 × 12 × 3 in

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