U.S. Chart No. 1: Symbols, Abbreviations and Terms used on Paper and Electronic Navigational Charts, 12th edition

Weems & Plath Marine Navigation Parallel Ruler (Brass Arms, 15-Inch)

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15 inch length, 0.14 inch thickness, solid brass arms and handles. Wt. 7 oz.

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15 inch length, 0.14 inch thickness, solid brass arms and handles. Wt. 7 oz.

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U.S. Chart No. 1: Symbols, Abbreviations and Terms used on Paper and Electronic Navigational Charts, 12th edition