Divisumma 18 calculator designed in 1972 by Mario Bellini for Olivetti.  Search “18a텔ErrorBased⑁스웨디시디비문의^$” from What is Modern? and Olivetti at DAM

Search “18a텔ErrorBased⑁스웨디시디비문의^$”

Divisumma 18 calculator designed in 1972 by Mario Bellini for Olivetti.