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. Bowl-Brass with heavy lead weight at base. Mounted on flanged gimbal ring. Black lubberlines painted on inside of bowl. Card- Mica covered with paper. Black with white markings graduated to 1/4 points. Has inner graduations circle. This is graduated bot
1845
National Maritime Museum

. Bowl-Copper weighted at base, set in brass gimbal ring. Black lubber line painted on inside of bowl. Card-Mica covered with paper. White with black markings graduated to points and quadrantally in degrees. Decorated North and East points. Graduated arc
1845
National Maritime Museum

. Card -Mica covered with paper, white with black markings, graduated to 1/4 points. Has decorated E point. At centre of card is a hole 1" dia. to accommodate pivot gimbal. Needle-Heavy bar edge needle, 6.3" long 0.3" deep. Has expanded cen
1845
National Maritime Museum

. Wooden square stand for the dry card compas
1845
National Maritime Museum