1988 IBM model M (1390131) Made by IBM 09 SEP 88

Description

part# 1390131
serial# 3133954
date 09 SEP 88 (28 years old)
IBM logo silver logo with black text
cable removable, coiled cable ps/2 cable (used)
key caps removable (two piece, key stem + key cap)
key switches clicky = 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)
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.  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.
comments Very nice IBM model M keyboard with silver IBM logo.  Has additional stabilizer bars under numeric + and Enter keys in addition to stabilizer under space bar.
comments This keyboard is tested to work 100%. The keyboard assembly has been confirmed to be in functional, operational condition.
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Additional information

Weight 7 lbs
Dimensions 24 x 12 x 3 in

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