Unique Dualistic High Speed

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Country of manufacture: England,            Date of manufacture: ____
Overall length: 30.0 cm,          Width: 4.3 cm,           Weight: 78.5 gms
Materials: printed scales laminated onto boxwood body and slide
Cursor: 3.5 X 4.7 X 0.6 cms; plastic runners holding plastic lens; lines = slingle line, front only
Scales: 13, no extensions
Front: 25 cm // P1, D2 [ C2, Q1, Q1, C1 ] D1, P2 \\ 10 in
Slide Back: LL1, LL2, LL3
Well: Decimal Equivalents of fractions
Back: Trigonometric Ratios
Gauge Marks: [ π ]
Condition: C2-C3 (Mint to Very mininal signs of use)
Came with: Original gray cardboard box/case

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