IBM Selectric II Typewriter, 1979 Installation – Early Computer Input Heritage IBM Selectric II electric typewriter, an iconic model in the history of writing and computing technology. Made in the USA, installed in 1979 (machine number 1687641, CE type 893, group 82C). The Selectric series introduced the revolutionary rotating typeball mechanism, replacing traditional typebars, and became the standard in offices worldwide. More importantly, its technology laid the foundation for early computer terminals such as the IBM 2741, which used the Selectric mechanism as an input device. This connection makes it a landmark not only in office automation but also in the prehistory of personal computing. Condition: The machine powers on and shows partial working ability, though complete functionality is not guaranteed due to age. Exterior with visible patina, scratches, and original IBM service stickers dated 1979 and 1982, providing authentic provenance. Value basis: 1. Historical authenticity – installed in 1979 with original IBM service labels preserved. 2. Design and technological innovation – the typeball system defined professional typing for decades. 3. Direct link to computer history – Selectric technology adapted as an early computer terminal input system. 4. Collectible as an industrial design icon and as a bridge between typewriters and computers. Dimensions: approx. width 52 cm, depth 43 cm, height 20 cm.