Vintage Mechanical calculator Olivetti Divisumma 24 Calculator Made In Italy | eBay
Olivetti Divisumma 28 Mario Bellini Design Years '70 For Sale at 1stDibs | jennifer olivetti, divisumma olivetti, mario bellini olivetti
108: MARIO BELLINI, Divisumma 28 and Divissuma 18 < Taxonomy of Design: Selections from Thessaloniki Design Museum, 25 August 2016 < Auctions | Wright: Auctions of Art and Design