Proportional Divider - Captain's Nautical Books & Charts

The 8 inch long Proportional Divider is a highly accurate speed-time-distance computer. Overview Use to accurately calculate speed-time-distance. Easily transfer points between different scale charts. Distance, picked off chart between divider points, can be immediately converted to speed or time. Silver/ nickel alloy

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Proportional Divider Set of 5, Full Brass dividers with Executive Wooden Box. – 5MoonSun5

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114 Nautical Divider Stock Photos - Free & Royalty-Free Stock Photos from Dreamstime

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US Charts, Large Sailing Charts - Captain's Supplies Tagged Overview (>1:500001) - Captain's Nautical Books & Charts

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