Simplon Major Log Log

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Country of manufacture: England,            Date of manufacture: ____
Overall length: 33.1 cm,          Width: 3.5 cm,           Weight: 61.4 gms
Materials: plastic laminate over wood; closed form
Cursor: 4.0 X 4.3 X 0.5 cm, all plastic;        Lines: one
Scales: 13, extensions on A, B, C, CI, D
Front: LU, A [ B, CI, C ] D, LL
Back: Physical Properties of Materials, Mensuration Formulae, Conversion Factors, Log, D
Slide Back: Table of Tan <5°, A, Sine, Tan, D, Table of Sin 87-90°
Gauge Marks: [ π, M (3183), C (1128), C1 (3568), 786 ]
Condition: C5 (Normal signs of use)
Came with: Orig. Purple cardboard box/case, one end broken out

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