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Lot 15: Slide Rule Calculator "Kalkylator", c. 1915
Auction House: Auction Team Breker
Auction Location: Germany
Auction Date: 2009
Description: Slide Rule Calculator "Kalkylator", c. 1915 Rare Swedish tin calculating device by Th. Leissner for the calculation of food stuff in stock farming after Prof. Nils Hanssons. Lithographed tin. Size: 8 x 9 2/3 in. In original cardboard box (distressed). - Extremely rare!
Rechenschieber "Kalkylator", um 1915 Ausgefallenes, schwedisches Rechengerät von Th. Leissner mit vielseitigen Berechnungsmöglichkeiten von Futtermitteln in der Landwirtschaft nach Professor Nils Hanssons. Lithographiertes Blech. 20 x 24,5 cm. Mit Original-Pappschachtel. - Äußerst selten!
Condition: (-/-)
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