![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
![File:Divisumma 18 calculator, designed by Mario Bellini & A. De Gregori, Olivetti & Co., Milan, 1973, plastic case - Museum für Angewandte Kunst Köln - Cologne, Germany - DSC09676.jpg - Wikipedia File:Divisumma 18 calculator, designed by Mario Bellini & A. De Gregori, Olivetti & Co., Milan, 1973, plastic case - Museum für Angewandte Kunst Köln - Cologne, Germany - DSC09676.jpg - Wikipedia](https://upload.wikimedia.org/wikipedia/commons/thumb/3/33/Divisumma_18_calculator%2C_designed_by_Mario_Bellini_%26_A._De_Gregori%2C_Olivetti_%26_Co.%2C_Milan%2C_1973%2C_plastic_case_-_Museum_f%C3%BCr_Angewandte_Kunst_K%C3%B6ln_-_Cologne%2C_Germany_-_DSC09676.jpg/2560px-thumbnail.jpg)
File:Divisumma 18 calculator, designed by Mario Bellini & A. De Gregori, Olivetti & Co., Milan, 1973, plastic case - Museum für Angewandte Kunst Köln - Cologne, Germany - DSC09676.jpg - Wikipedia
![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)