Keuffel & Esser Log Log Duplex Decitrig Slide Rule, 4081-3, c. 1955
13.0017.001
Donated by Dr. Beverly Mock
If you are of a certain age, you might know how to use this slide rule, which belonged to Dr. Michael Potter. This model was extremely popular from the 1940s-1960s, and underwent several design changes. If you really want to use one that you find in the back of a laboratory drawer or at a yard sale, there are many sites with information, like this page.
Donated by Dr. Beverly Mock
Donated by Dr. Beverly Mock
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