Youtor
The Walther RMKZ calculator
>> YOUR LINK HERE: ___ http://youtube.com/watch?v=GbgZHEsfpaM
The Walther RMKZ is a mechanical calculator of a standard Odhner pinwheel type. • It would have been black originally. The hammer grey enamel was probably added in the 1950s or 60s when that was fashionable. • For more information, visit my website: • https://www.jaapsch.net/mechcalc/ • 0:00 Introduction, history • 1:31 Addition • 2:25 Subtraction • 3:12 Clearing • 3:39 Overflow bell • 4:38 Multiplication • 6:12 Shortcut multiplication • 7:09 Division • 9:58 Outro
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