Divisumma GT 24 adding machine designed in 1956 by Nizzoli Marcello for Olivetti.  Search “텔레@coinsp24컬쳐랜드코인구입컬쳐랜드코인구매컬쳐랜드코인구입컬쳐랜드코인구매” from What is Modern? and Olivetti at DAM