1986 IBM model M (1390131) Made by IBM 27 OCT 86

Description

part#1390131
serial#1155861
date27 OCT 86 (29 years old)
IBM logosilver logo with black text
cableremovable, coiled cable, black AT cable (used)
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.  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.
commentsVery nice IBM model M keyboard with internal, thicker shiny curved plate and silver IBM logo.  Has additional stabilizer bars under numeric + and Enter keys in addition to stabilizer under space bar.
commentsThis keyboard is tested to work 100%. The keyboard assembly has been confirmed to be in functional, operational condition.
commentsMany, but not all of the original rivets, have been expertly replaced with M2 screws for ensure for a tight and crisp keyboard feel.  Has some indelible marks that could not be removed from cleaning (1, near the arrow keys and 2, near the IBM silver logo, see photos)















Additional information

Weight8 lbs
Dimensions24 × 12 × 3 in

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