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Spasm price Weems Plath Marine Navigation Slide specialty shop Nautical Rule

Weems Plath Marine Navigation Nautical Slide Rule

$23

Weems Plath Marine Navigation Nautical Slide Rule

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Product description

Gives immediate solution to all speed-time-distance problems. Equally applicable for nautical or statute miles. Speed in knots or m.p.h., time in hours, minutes, or seconds, and distance in nautical or statute miles (or yards if desired, and if speed is i

Weems Plath Marine Navigation Nautical Slide Rule

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