"The 4080-3 Slider Rule Is The Slide Rule Used At Los Alamos During Research And Assembling Of Atomic Devices Including The Atom Bomb of 1945"

K&E 4080-3 ---- 1936-1939 Scale Set with Circular Logo

"Photos Provided From the collection of Clark McCoy"

This slide rule was purchased from John Paul Rossie. His father purchased the rule as he entered the Naval Academy in the class of 1939. There is also a manual with it that has a copyright date of 1936.

Front side

Back side

Click Here to Return To Link Page.