white-model-m
001002003005006sdl-to-ps2-keyboard-cable-002sdl-to-ps2-keyboard-cable-001

1989 IBM model M (1391401) Made by IBM 02 NOV 89 with custom keycaps

Product Description

part# 1391401
serial# 4233027
date 02 NOV 89 (27 years old)
IBM logo black logo on white background
cable removable SDL, coiled cable, ps/2 connector (new cable, standard length)
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. Photo gallery of typical restoration workflow.
comments  Interesting set of custom key caps with sublegends in dark green text

(on function row) CANC, SEL, COPY, INDX, LAST, ABN, CRIT, NCRI, MSTR, CALL DISP, STOR SAV.DB, SILN A. DIS
(on alpha keys) TRIP LOW, CLOS RAIS, EDIT, A. DEL, TAG, INHI, SERV, A.ACK, MAN, HIST, VIEW, EXEC)

Also additional gylphs on front side of keys (unknown function)

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