Provided by the ASK Keyboard Directory
eg, P/N 6052141
87-key EBCDIC data typewriter keyboard with internal solenoid clicker assembly and blue-coloured display case toggle switch for the 3270-family IBM 3178 Model C4 Display Station. This variant implements the layout found previously on RPQ 8K0932 IBM 327X-87 type Model B keyboards for IBM 3276, 3278 and 3279 Display Stations, which was notable for its 12-key combination adding machine style numeric keypad and 12 program function keys. It was only available in US English.