original IBM model M internal frame assembly for 1390120 / 1390131

Description

Internal plastic frame from model M keyboard.  Item in very good, used condition.

Includes 3 plastic expansion tubes

Includes plastic stabilizers for 5 larger horizontal l keys.

Has plastic tabs for metal stabilizers underneath numpad Enter and numpad + keys.

Compatible with 1390120, 1390131, 1987-1992 1391401 cases that do not have drainage holes in bottom case.