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Optimized for Celestial Navigation: Tailored for effective use with a sextant
Published Date: January 2013
buoyage and other nautical matters
3 German ‘Ship of the Future’
Linex 15″ Aluminum Graduated Parallel Rules Clearance Optimized for Celestial Navigation: TailoredWith bevels on all four sides; springs built in the bearings ensure a smooth motion which is critical in parallel rule operation. Cork disks on the underside prevent slipping and soiling. The sides are divided with protractor markings (double reading) and compass points. The rules are machined from . 16 inch acrylic sheet for accuracy and strength. The metal links are made from aluminum. Length: 15 inch
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