British Slide Rule Company Technical Aeronautical Slide Rule

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Country of manufacture: England,            Date of manufacture: ____
Overall length: 30.4 cm,          Width: 4.9 cm,           Weight: 125.1 gms
Materials: Celluloid laminate over wood
Cursor: 6.0 X 5.1 X 0.7 cms; all plastic; (possibly/probably not original cursor); lines = single hairline
Scales: 15, with extensions on A, B, C, D
Front: 10 in // M (LL2) , P, A [ B, P^I, CR, C ] D, K, N (LL3) \\ 27 cm
Slide Back:      S, ST, T
Gauge Marks: [ π, C, C', L, W, M, Q', Q'', Q,, (6366)]
Back: physical and chemical properties of metals
Condition: C5 (Normal signs of use)
Came with: nothing

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