IBM 3290 Model 1/5080 Converged Keyboard Numeric Keypad
Provided by the ASK Keyboard Directory
313X type Model F
eg, P/N 6018100
IBM-made 24-key (most) or 25-key (WTC) numeric keypad peripheral for the IBM 3290 Model 1 Information Panel and the IBM 5080 Graphics System and their Type 1 104-key Model F Converged Keyboards. They directly connected to the keyboard via a short cable with a DA-15 plug instead of a host terminal or graphics system. They were also designed to match the same side profile as its host keyboard.