P/N 1395100 - Disputed Part Number
Provided by the ASK Keyboard Part Number Database
1395100 is a [disputed] part number introduced during the Lexmark era. It's used as the FCC ID for Lexmark-made 101/102-key Model Ms (IYL1395100) but three different keyboards use "1395100" as their part number.
Reply-branded 101-key keyboard
The earliest keyboard using the part number beyond as an FCC ID were the Reply Corporation branded Lexmark Classic Touch Keyboards with square-shaped badges. The earliest example currently known is from March 1992.
Eagle-branded 101-key keyboard
The second keyboard using the part number were Eagle Computers branded Lexmark Classic Touch Keyboards also with square-shaped badges. The earliest example currently known is from November 1992.
IBM Space Saving Keyboard (possibly for IBM EduQuest)
Some IBM-branded Space Saving Keyboards have been spotted with a label using this part number, even placed on top of an existing label. An example coupled with a box seems to also have a label indicating 60G0869 is the keyboard's intended part number.