F.133 Data Sheet MJS-p-0311

Hemmi, Byoutou, 1944

Serial Number or Date Stamp:

Country: JPN Primary construction material: bb Case included?: yes

General Description: Specialty linear military slide rule

Length of 1 decade = 8 in, and overall scale length = 10 in. The largest physical dimension is 11 in.

Front Scales: V L /| (1) (2/11) [ (3/12) (4/15u) (5/14u) (6/13) ] (7) (8) || (9) (10)

Back Scales: [ (16) (17) (18) ]

Notes: Military artillery or navigation rule? various scales using sines/tangents in degrees and in mils

References: https://sliderulemuseum.com/Hemmi/SunHemmi_Electro_DonatedByDrDiChen.jpg; https://sliderulemuseum.com/isrm/srtco/HemmiCat2/Index.html

Date Acquired: 07/10/2023