![computer / electronics, computer, calculating machine Olivetti Summa 19, with integrated printer, design Ettore Sottsass and Hans von Klier, Italy, 1969, Additional-Rights-Clearences-Not Available Stock Photo - Alamy computer / electronics, computer, calculating machine Olivetti Summa 19, with integrated printer, design Ettore Sottsass and Hans von Klier, Italy, 1969, Additional-Rights-Clearences-Not Available Stock Photo - Alamy](https://c8.alamy.com/comp/FFN5YY/computer-electronics-computer-calculating-machine-olivetti-summa-19-FFN5YY.jpg)
computer / electronics, computer, calculating machine Olivetti Summa 19, with integrated printer, design Ettore Sottsass and Hans von Klier, Italy, 1969, Additional-Rights-Clearences-Not Available Stock Photo - Alamy
![Scott Kerr on Twitter: "Olivetti Summa 19 calculator, designed between 1969 and 1970 by Ettore Sottsass and Hans von Klier https://t.co/tPRGFZlEF2" / Twitter Scott Kerr on Twitter: "Olivetti Summa 19 calculator, designed between 1969 and 1970 by Ettore Sottsass and Hans von Klier https://t.co/tPRGFZlEF2" / Twitter](https://pbs.twimg.com/media/EkNeuWXWsAgAjpX.jpg)
Scott Kerr on Twitter: "Olivetti Summa 19 calculator, designed between 1969 and 1970 by Ettore Sottsass and Hans von Klier https://t.co/tPRGFZlEF2" / Twitter
![File:Hans von klier ed ettore sottsass per olivetti & co. spa, telefono summa 19, 1970.jpg - Wikimedia Commons File:Hans von klier ed ettore sottsass per olivetti & co. spa, telefono summa 19, 1970.jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/e/e7/Hans_von_klier_ed_ettore_sottsass_per_olivetti_%26_co._spa%2C_telefono_summa_19%2C_1970.jpg)