The Walther WSR-160, from the 1960s. A German pinwheel calculator, one of the best of its type. Made by Walther, the gun maker!
This is episode 71 of my video series about old calculating devices.
End song inspired by "Hotter than a Molotov" by The Coup.
Chris Staecker webarea: https://faculty.fairfield.edu/cstaecker
#itstheguns