OLIVETTI LOGOS 55 MARIO BELLINI DESIGN su Secondamano.it collezionismo,
Modem Times on Twitter: "The 1949 Olivetti Summa 15 manual calculator. This version has two additional digit keys (10 and 11) to allow it to calculate pre-decimal British currency - 12 pennies
calculator museum Olivetti Logos 9
Olivetti Logos 328
Olivetti Logos 55 Electronic Desktop Calculator, 1974 - May 18, 2019 | Auction Team Breker in Germany