The Walther WSR-160 is a pinwheel calculator produced from 1956 to 1968 by Walther, a company known for manufacturing pistols such as the Walther PPK. The calculator features controls on the right-hand side, a carriage shifting mechanism, crank operation, and a built-in shifting mechanism for different calculations. The demonstration shows division processes, resetting counters, managing remainders, and an alternate quicker method involving addition and subtraction. Instructions include clearing inputs, transferring data with levers, and selecting options for counter and register clearing. Overall, the WSR-160 is highlighted for its features and ease of use, with a glimpse at the manufacturer's label for reference.
