BHL P4277 Nelson-Jones Circuit Designers Slide Rule

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Country of manufacture: England,            Date of manufacture: ____
Overall length: 30.8 cm,          Width: 3.7 cm,           Weight: 57.0 gms.
Materials: All plastic
Cursor: 3.1 X 4.0 X 1.0 cms; all plastic, slightly magnifying; lines = single line front and back
Scales: 16
Front: dB, A [ B, CI, C ] D, LL3, LL2
Back: X_L (10k, 10M, 10G) [ L & C (100k), f (1 Hz -100 MHz) ] X_C (100, 0.1, 0.0001)
Gauge Marks: [ e, π, 2π ]
Condition: C2 (Mint but w/o all extras)
Came with: Original blue/transparent plastic sheath

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