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Italian Olivetti Summa 15 handcrank mechanical calculator from the 1950s - Shop L&R Antiques and Curiosa Items for Display - Pinkoi
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Vintage Italian Design Olivetti Desk Top Calculator Logos 55, Designed 1970s by Mario Bellini, 220V, Working Order. - Etsy
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1953 Olivetti Divisumma 14 running without body | made in Italy | electromechanical calculator - YouTube
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computer / electronics, computer, calculating machine Olivetti Summa 19, with integrated printer, design Ettore Sottsass and Hans von Klier, Italy, 1969, Additional-Rights-Clearences-Not Available Stock Photo - Alamy
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Italian Olivetti Summa 15 handcrank mechanical calculator from the 1950s - Shop L&R Antiques and Curiosa Items for Display - Pinkoi
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