Antique Large Swedish Mechanical Pin-wheel Calculator Original-odhner Model 27
ANTIQUE LARGE SWEDISH DESKTOP MECHANICAL PIN-WHEEL CALCULATOR ORIGINAL-ODHNER MODEL 27 / FOUR FUNCTION. Metal-cased model, made of cast-iron and brass. In GOOD condition, 100 % original, old patina. IT APPEARS TO BE WORKING, THE HANDLES TURN AND IT ZEROS BACK. Functions: add / subtract / multiply / divide. Marked: ORIGINAL-ODHNER, Göteborg Sverige, No. UNDERNEATH STAMPED IN THE CASING IS m602 nO 5. Model 27 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. On completion of the first calculation the operator clears the rotor and presses the back-transfer lever (at the right of the carriage).
As the accumulator is then cleared, the mechanism transfers its contents back to the rotor. A small release lever is provided below the back-transfer button, in case it was pressed accidentally. The back-transfer mechanism became standard equipment on most subsequent models. THE PHOTOGRAPHS FORM PART OF THE DESCRIPTION. For Domestic customers, all our parcels/item will be posted by Regular Post unless otherwise requested and there will be an additional charge.
The item "ANTIQUE LARGE SWEDISH MECHANICAL PIN-WHEEL CALCULATOR ORIGINAL-ODHNER MODEL 27" is in sale since Saturday, April 06, 2013. This item is in the category "Collectables\Science, Medical\Science". The seller is "bromleybooks" and is located in Sydney, New South Wales. This item can be shipped worldwide.