British Slide Rule Company Technical Standard Slide Rule

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Country of manufacture: England,            Date of manufacture: ____
Overall length: 30.4 cm,          Width: 3.9 cm,           Weight: 103.1gms
Materials: Celluloid laminate over mahogany
Cursor: 3.2 X 4.4 X 0.8 cms; all plastic; ; lines = single hairline
Scales: 11, with extensions
Front: 10 in // M (LL2) , A [ B, C ] D, N (LL3) \\ 27 cm
Slide Back:      S, ST, T
Back: physical constants, conversion factors
Gauge Marks: [ π, C, C1, A ]
Condition: C3-C4 (Very Minimal to Minimal signs of use)
Came with: Red cardboard case

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