"Marcello Nizzoli (Italian pronunciation: [marˈtʃɛllo nitˈtsɔli]; 1887 - 1969) was an Italian artist, architect, industrial and graphic designer. He was the chief designer for Olivetti for many ...
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years and was responsible notably for the iconic Lettera 22 portable typewriters in 1950." - (en.wikipedia.org 13.06.2020)