IBM 3275/3277 Display Station Type B 78-key Typewriter Keyboard
Provided by the ASK Keyboard Directory

The revised IBM-made 78-key [data] typewriter keyboard for the IBM 3275 and 3277 Display Stations.
Provided by the ASK Keyboard Directory
The revised IBM-made 78-key [data] typewriter keyboard for the IBM 3275 and 3277 Display Stations.