This means that when performing a division calculation the movement of the carriage from right to left is aided by the spring. This potentially saves the time which would otherwise be spent in setting up the dividend in the normal way – by entering it into the input register and turning the crank once to transfer it to the accumulator, then clearing the “1” from the counter register.Īnother refinement is that the carriage moves from left to right against spring pressure. Another feature of this machine is that dividends can be entered directly into the accumulator via knurled thumbwheels attached to the number wheels. However, it is clearly a better machine than the Schubert. It has all of the usual refinements of a high-end machine (also present in the Schubert DRV).
As might be expected from a company in the firearms trade the engineering of this machine is first class.
This is a German machine, a Model WSR160, manufactured by Walther – who also made James Bond’s PPK automatic pistol.