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Military Slide Rules
K&E Model 4108, American Blueprint, & Pickett Model 14
WW II through the 1950s Vintage
There were a series of slide rules produced by various manufacturers with the same scale set and titled "MILITARY SLIDE RULE". Even though there is a K&E model number for one of these rules, there is no official documentation from K&E on the rule. There is no mention of it in the catalogs.
- K&E Model 4108 --- Titled "Military Slide Rule". 10" rule on large wood frame like 4096 with special scales.
- American Blueprint --- Titled "Military Slide Rule". 10" rule on large wood frame thiner than the 4108.
- Pickett Model 14 ----- Titled "Military Slide Rule". Constructed on a Pickett N3 frame with the special scale set of the K&E and American Blueprint modes. The back side of the rule has one side of the N3 scale set.
A military instruction manual was produced with the title: TM 6-240, War Department Technical Manual, RULE, SLIDE, MILITARY.
The slide rule is constructed on a Mannheim style wood frame with celluloid laminated to the surfaces. The frame size is the same as the large K&E 4096 Merchant's slide rule.
These scans are from the collection of Clark McCoy
Front view
Back of slide
Back of rule
Left end view
Side view with serial number
American Blueprint Military Slide Rule
The particular slide rule shown here has a manufacturer's name of "AMERICAN BLUEPRINT CO., NY".
The slide rule is constructed on a Mannheim style wood frame with celluloid laminated to the surfaces. The frame size is the same as the large K&E 4096 Merchant's slide rule.
Scans are from the collection of Clark McCoy
Back side of slide
Rear of rule
End profile of rule
Profile view of very substancial leather case. Case is constructed of heavy belt type leather.
