IBM Lexmark Model M 1397599 Buckling Spring Keyboard 1994 Tested PS/2 Cable

Vintage IBM Model M 1397599 buckling spring keyboard, manufactured for IBM by Lexmark, made in the USA and dated 02-MAY-94.

This is a full-size IBM Model M keyboard with buckling spring switches, included detachable coiled PS/2 cable, function keys, navigation cluster, numeric keypad, and lock indicator LEDs.

I tested the keyboard on a Dell Inspiron 8100 docking station using a PS/2 connection and also verified key scan codes under antiX Linux. All keys registered correctly, including the special keys Print Screen, Scroll Lock, and Pause/Break. The Num Lock, Caps Lock, and Scroll Lock LEDs all work.

The keyboard is in vintage used condition. It has very minor cosmetic wear, and slight age-related discoloration/yellowing. I have not deep-cleaned or restored it.

Included:

IBM Model M 1397599 keyboard, manufactured for IBM by Lexmark
Detachable coiled PS/2 cable

Details from label:

Part No.: 1397599
FRU No.: 1392090
ID No.: 054306C
Plt. No.: S1
Date: 02-MAY-94
Model: M
Manufactured for IBM by Lexmark
Made in USA

Brand: IBM
Manufacturer: Lexmark
Model: Model M
Part Number: 1397599
FRU Number: 1392090
Keyboard Layout: QWERTY / English
Connectivity: PS/2
Type: Mechanical / Buckling Spring Keyboard
Color: Gray
Country/Region of Manufacture: United States
Vintage: Yes
Date Code: 02-MAY-94
Condition: Used

Sold as a vintage used keyboard, tested working as described.