Weems & Plath Marine Navigation Nautical Slide Rule. Weems & Plath Nautical Navigation Slide Rule.
Gives immediate solution to all speed-time-distance problems. Equally applicable for nautical or statute miles. Speed in knots or m.
Time in hours, minutes, or seconds, and distance in nautical or statute miles or yards if desired, and if speed is i. The item "Weems & Plath Marine Navigation Nautical Slide Rule" is in sale since Thursday, January 19, 2017.
This item is in the category "Sporting Goods\Outdoor Sports\Camping & Hiking\Hiking Gear\Compasses & GPS". The seller is "urbaninspirationsca" and is located in Toronto, CA.This item can be shipped to Canada.