BRL P1454/2 Mk II Slide Rule for Calculation of Diameter of Orifice Plates with Corner Taps

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Country of manufacture: England,            Date of manufacture: ____
Overall length: 30.2 cm,          Width: 7.0 cm,           Weight: 273.9 gms.
Materials: Simplex closed body form, all plastic
Cursor: 3.5 X 7.8 X 0.6 cms; metal runner holding plastic lens; lines = single hairline, front only
Scales: Specialized
Gauge Marks: [       ]
Condition: C3-C4 (Very Minimal to Minimal signs of use)
Came with: Original dark blue cardboard box/case

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