1991 IBM model M (1397661) Made by IBM 09-11-91

Description

part#1397661
serial#4005879
date09-11-91 (26 years old)
IBM logoblack logo on white background
cableremovable SDL, coiled cable, ps/2 connector (new cable, standard length)
key capsremovable (one piece key stem integrated into 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. Any missing 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.
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commentsThis keyboard is tested to work 100%. The keyboard assembly has been confirmed to be in functional, operational condition.
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Additional information

Weight7.1 lbs
Dimensions24 × 12 × 3 in