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1938 Odhner Pinwheel Calculator Model 27

Known Information

	Category : Mercantile, Trades & Factories > Cash Register, Adding Machines	Item Id: 95983
	Primary Material: Metal	Year: 1938
	Production: 1935-1945	Type: Mechanical pinwheel calculator
	Brand: Original Odhner	Model info: Model 27 ,m602 No5
	s/n: 27-174940 Country of Manufacture:=Goteburg , Sweden	Estimated value: 1000 USD
	Setting register: 10-digit	Accumulator register: 13-digit
	Revolutions register: 8-digit	Mechanics: Pin-Wheel / Sprossenrad 10s Carry Mechanism Counter Stepping Mechanism + Animation
	Arithmetic functions: All four arithmetic operations (except division by zero) can be performed	Input type: cursors, rotating
	Dimensions: 345 x 140 x 115 mm (13.6" x 5.5" x 4.5")	Weight: 5 Kg (11 lbs.)
	This type of calculators, was invented by Willgodt T. Odhner in Russia, in 18743. This model has no check dial or counter carry mechanism, but is fitted with a back-transfer mechanism to allow a sum or product to be re-used in a subsequent calculation.