IBM 4704 Display Station Model 300 Expanded Alphameric Keyboard
Provided by the ASK Keyboard Directory
472X-300 type Model F, aka "Model F77"
eg, P/Ns 6019303, 6019338, 6019343, 6019345, 6019347, 6019348, 6019353, 6019356
IBM-made 77-key typewriter-style keyboard for IBM 4704 Model 1, 2 and 3 Display Terminals, components of the IBM 4700 Finance Communication System. This keyboard is an expanded version of the 62-key IBM 4704-200 Alphameric Keyboard with 15 extra relegendable keys for tailored alphabetic input or programmed functions. Like its smaller sibling, this keyboard was intended for personal consultants and administrative personnel. The keyboard's cover is made of zinc and has a volume-adjustable buzzer on the bottom intended to provide an audible alarm to the user on certain system and application program conditions.