1392090 Ibm 8525 101key Ps/2 Keyboard ... about Vintage IBM 1984 Model M 1391401 Clicky Keyboard 1392090 ---K158 Please ensure that your original part number matches this exactly, or check with the manufactuer for compatiblity. Customers are responsible for compatiblity. This part is guaranteed to be fully functional, original and authentic. ... about Vintage IBM 1984 Model M 1391401 Clicky Keyboard 1392090 ---K158