Replacement original IBM model M bottom case from IBM part# 1393464 (1988)
– suitable replacement for 1391401 (1987 – 1992)
– could also be used for earlier (1986 -1987) 1390131, or most any other 101-key Enhanced Model M keyboard (1988 – 1992), but these later keyboards had different IBM keyboard cases and later cases (1993+ onward) had drainage holes.
– item lightly cleaned and inspected for no major cracks, nomajor scratches, no major ink marks, intact internal plastic clips, intact hard plastic elevator feet, intact round rubber non-slip feet.
Note: Case would technically fit on a IBM/Lexmark 42H1292 keyboards or on later Unicomp variants, but note that the original cable exit path on the original model M keyboards are in a significantly different placement and the cut-out holes would not match.
Item includes original IBM sticker for part# 1393464, serial # 0021424, Date 09 MAY 88. Sticker can be removed with heat gun/hair dryer and/or sticker solvent. We are selling this spare part with the original IBM sticker. The final buyer can do whatever they want with the item.. but please don’t be “that guy on the keyboard forums” who takes this bottom piece and then mismatches it with a later Made by Lexmark or Made by Unicomp keyboard internals to make a “Frankenstein-like restoration” and then make false claims as to the rarity of the keyboard. 😛