Αρ. 102417485

Marcello Nizzoli - Olivetti, Summa Prima 20 - Αριθμομηχανή - 1960-1970
Αρ. 102417485

Marcello Nizzoli - Olivetti, Summa Prima 20 - Αριθμομηχανή - 1960-1970
The Olivetti Summa Prima 20 is a classic manual mechanical calculator, first introduced in 1960. Designed by Marcello Nizzoli with mechanical engineering by Natale Capellaro, it stands as an iconic piece of Italian industrial design.
This hand-cranked calculator performs addition and subtraction and prints results on an integrated paper roll—perfect for collectors, vintage enthusiasts, or anyone who appreciates beautifully engineered office equipment.
Key Features:
• Fully functional manual mechanical operation (no electricity required)
• Built-in printing function
• Distinctive aqua-green design with rounded shapes
• Compact and portable
• Ideal for collectors or display
Condition:
Very good vintage condition. There is only a visible small crack on the left side, but the machine is fully functional and operates as intended.
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