Calcolatrice Olivetti Mod. SUMMA 19 R, Design E. Sottsass, Italy 1969
SUMMA 19 - ADI Design Museum
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
telmachine olivetti summa 19 01 1970 v klier h_sottsass e … | Flickr
Olivetti Summa before 20 Calculator Manual 1960 Post m1 Vintage Calculator | eBay
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