Calculators, Calculating Tools and Demonstration... Lot n° 38

Calculators, Calculating Tools and Demonstration Model 1) Prototype of an adding machine, brass, unmarked, with 10 setting slides, 11 ¾ x 9 ¼ x 2 ¾ in., mechanism sticks slightly. - 2) Single-row Diehl stepped-drum calculator demonstration model, c. 1955. - 3) The Moe Diamond Weight Calculator. - 4) Leimer-Werner day counter, Ø 12 ¼ in. - And: 5) Bergmann "Unical" Universal-Calculator, 1935. Rechenmaschinen, Rechen-Hilfsmittel und Demonstrationsmodell 1) Prototyp einer Additionsmaschine, unbezeichnet, mit 10 Einstellschiebern, Messing, 30 x 23 ½ x 7 cm, Mechanik hakt teilweise. - 2) Einreihiges Demonstrationsmodell einer Staffelwalzen-Rechenmaschine von Diehl, um 1955. - 3) The Moe Diamond Weight Calculator. - 4) Leimer-Werner'scher Tagzähler, Ø 31 cm. - Und: 5) Bergmann "Unical" Universal-Calculator, 1935. Condition: (3/-) Start Price: EUR 180