BRL Meterological Office M2260 Humidity Slide Rule, Mark VI, Met. Ref. No. 22000

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Country of manufacture: England,            Date of manufacture: ____
Overall length: 28.5 cm,          Width: 4.7 cm,           Weight: 142.6 gms.
Materials: closed body form, all plastic
Cursor: 3.5 X 5.0 X 0.6 cms; all plastic, reversible; lines = single hairline
Scales: Specialized
Gauge Marks: [       ]
Condition: C3 (Very Minimal signs of use)
Came with: Original dark green cardboard box/case

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