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. Bowl-Copper, card chamber occupies 1/3 of depth of bowl 2.15" (5.4cm). Outer lower portion carries two racks and guide rods which carry heavy ring which can be varied in height. Mounted on brass stem by ball and socket joint allowing bowl to oscil
1825
National Maritime Museum

. Brass measuring scale in wooden box 3ft 9" x 4" (114.3 cm x 10.2 cm)
1825
National Maritime Museum

. Card- Mica with paper rim and star depicting the 8 points of the compass. Rim is black with white markings graduated to 1/2 points. Star is white with black letters and black circular centre. Wax balancing blobs in red and black on underside. Needle- Th
1825
National Maritime Museum

. Card- Mica with paper rim and star depicting the 8 points of the compass. Rim is black with white markings graduated to 1/2 points. Star is white with black letters. Star is open at centre. Rim is dished. Decorated East point. North point decorated with
1825
National Maritime Museum

. Card-Mica covered with paper, black with white markings, graduated to 32 points. Has decorated E point. Has four blobs of sealing wax for balancing. Needle- Single flat bar type 5.5" long, 0.4" wide, with expanded centre to accommodate pivot c
1825
National Maritime Museum