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. Bowl-Cast iron with glass bottom.
1854
National Maritime Museum

. Bowl-Opaque glass with weight at bottom but inside bowl. Black painted lubber line. Brass verge ring, inner ring and rim. Set in brass gimbal ring. Card- Mica hand painted. White with black markings graduated to 1/2 points. Pivot mounted on bracket cent
1854
National Maritime Museum

. Bowl: A glass bowl held between a brass plate at the top and at the bottom. The bowl is mounted in double vertical gimbals, one fore and aft and the other athwartships, this one being operated by two rollers. Two heavy brass weights are at the base of
1854
National Maritime Museum

. Dry compass Card: Mica covered with paper. Brownish with black markings graduated to half points and in degrees 0 - 180 East and West from North. Hollow centre with metal angled bridge holding pivot spike. Two slits in card to accommodate needles. Roy
1854
National Maritime Museum

. Dry compass Card: Vertical metal ring 1.5" deep, outer edge painted white with black markings graduated to half points and quadrantally in degrees. Needle: Two edge bar needles 5.15" in length, mounted in light brass double gimbals at cent
1854
National Maritime Museum

. Card for a dry card compass Card: Mica covered with paper. Brown with black markings graduated to quarter points and 0 - 180 East and West of North Point. Hollow centre with angled brass bridge holding screw in pivot spike. Has two slits for needles t
Mar 1854
National Maritime Museum