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. A "Control Compass" patented by Liet. Joseph von Peichl of the Austro-Hungarian Navy in 1879. Patent No.5045. The instrument consists of a double needle with a mirror mounted on agate bearings so as to form a dipping needle. The frame in which
1879
National Maritime Museum

. A pair of magnetic needles are mounted on iridium pivots working on jewel surfaces and a small vertical magnet which is carried inside the central stem can be raised or lowered by means of a screw operated by a graduated head above the glass face of th
1879
National Maritime Museum

. Base of box for verge glass.
1879
National Maritime Museum

. Bowl-Black painted brass with electrical socket at side and a thin wire attached to nut at centre of base. Inside of bowl painted white with a black painted lubber line. A heavy black painted lead weight is attached at bottom. Two milled headed studs, c
1879
National Maritime Museum

. Bowl-Copper painted brass, with oil-filled chamber at base. Inside of bowl painted white, with black painted lubber line extending from centre to rim. Anodised brass verge ring graduated from N to S on each half 0o - 180o. Flat verge glass is fitted wit
1879
National Maritime Museum

. Compass bowl box with the remains of a leather strap.
1879
National Maritime Museum

. Dry card compass card. Thomson's patent 10 inch card with 8 needles.
circa 1879
National Maritime Museum

. Dry compass Card: The paper band is attached to the metal circumference and also to the centre by silk thread. The card is white with black markings graduated to eight points and quadrantally in degrees. Pivot: Consists only of an aluminium "wa
1879
National Maritime Museum

. Dry compass Card: The paper band is supported by the metal circumference and by fine silk threads. The paper is white with black markings graduated to quarter points and quadrantally in degrees. Needle: The four needles in 2 sets of 2, are suspended
1879
National Maritime Museum

. Dry compass card in wooden box with six needles. Card: Consists of a paper band attached to the metal circumference and metal centre by fine silk threads. The paper is white with black markings graduated to quarter points and with two sets of quadrant
1879
National Maritime Museum

. Lid of box for verge glass.
1879
National Maritime Museum

. Spare verge glass Patt 53A for ACO47. Consists of a brass verge ring and glass with brass stud at its centre for locating an azimuth mirror.
1879
National Maritime Museum