Walther WSR-160 Demonstration machine Digits: 10 rotor, 8 counter, 16 accumulator Dimensions: Body 240W x 160D x 135H, overall width 330mm Manufactured: Walther, Germany, 1957
Walther’s post-war production resumed in 1948 with the WSR-160 pin-wheel calculator. The WSR-160 adds a rotor clearing and back-transfer mechanism to the features of the previous models, with the controls re-arranged for operation with the right hand alone. The accumulator dials retain the serrated thumbwheels to enable manual setting of dividends. The two register clearing handles have been replaced with a single red lever at the right-hand end of the carriage, and a small white control at the lower front. The lever normally clears both registers together, but the control can be set to either side to clear the counter or accumulator alone. The machine has the same carriage shift levers as the previous models, with the release button relocated to the right-hand end of the baseplate. The rotor setting levers have colour-coded plastic caps which remain stationary as the handle is turned. The white lever at the top right-hand rear is pulled forward to clear the rotor, while the adjacent red lever clears the rotor and engages the back-transfer mechanism. The transfer occurs in a separate operation as the accumulator is cleared. A small button behind the winding handle releases the back-transfer lever if it was engaged accidentally. http://home.vicnet.net.au/~wolff/calculators/Walther/Walther.htm
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