![Botterweg Auctions Amsterdam > Plastic Portable Electronic Typewriter ETP 55, design Mario Bellini 1985-'86, executed by Olivetti / Italy Botterweg Auctions Amsterdam > Plastic Portable Electronic Typewriter ETP 55, design Mario Bellini 1985-'86, executed by Olivetti / Italy](https://www.botterweg.com/Portals/0/auction/Juni2009/highres/15-8-7_1.jpg)
Botterweg Auctions Amsterdam > Plastic Portable Electronic Typewriter ETP 55, design Mario Bellini 1985-'86, executed by Olivetti / Italy
![computer / electronics, computer, calculating machine Olivetti Divisumma 18, design by Mario Bellini, something larger as a pocket calculator, Italy, 1972, Additional-Rights-Clearences-Not Available Stock Photo - Alamy computer / electronics, computer, calculating machine Olivetti Divisumma 18, design by Mario Bellini, something larger as a pocket calculator, Italy, 1972, Additional-Rights-Clearences-Not Available Stock Photo - Alamy](https://c8.alamy.com/comp/FFN5YR/computer-electronics-computer-calculating-machine-olivetti-divisumma-FFN5YR.jpg)
computer / electronics, computer, calculating machine Olivetti Divisumma 18, design by Mario Bellini, something larger as a pocket calculator, Italy, 1972, Additional-Rights-Clearences-Not Available Stock Photo - Alamy
![vita e creazioni di mario bellini, il padre del design del primo pc al mondo, la p101 del 1965 - Dagospia vita e creazioni di mario bellini, il padre del design del primo pc al mondo, la p101 del 1965 - Dagospia](https://cdn-static.dagospia.com/img/patch/03-2017/mario-bellini-878423.jpg)