1988 IBM model M (1390131) Made by IBM 17 SEP 88 + Lotus Dev Corp 1-2-3 template

Description

part#1390131
serial#3142393
date17 SEP 88 (33 years old)
IBM logosilver logo with black text
cableremovable, gray coiled SDL to ps/2 cable (new cable)

 

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.
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.

Includes 4 blue 7/32″ screws primarily found in 1986 model M keyboards.  Silver IBM aluminum logo and top plastic case has some scratches (see photo)

Includes original Lotus Dev Corp 1-2-3 function template above function keys (can be removed)

Additional information

Weight8 lbs
Dimensions20 × 9 × 3 in

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