Summa 19 calculator designed in 1970 by Ettore Sottsass for Olivetti.  Photo 10 of 12 in What is Modern? and Olivetti at DAM by Miyoko Ohtake

What is Modern? and Olivetti at DAM

10 of 12

Summa 19 calculator designed in 1970 by Ettore Sottsass for Olivetti.