Signed Marine Compass, C.1800

"This drypoint compass, decorated with geometric patterns, can be opened with one hand, up to 180°. It consists of two arms, the upper part of which, split on one side, is semicircular in shape. At the top, a screw serves as a pivot." (Frémontier-Murphy, 2002) Used for nautical charts: it has a smaller opening capacity than the straight compass, but its shape makes it easier to grip with one hand, the other remaining available for handling the navigation ruler or pencil. See the copy in the Louvre Museum. This copy is unusual for two reasons: - it is of an unusual size, measuring 19.5cm in length, its two arms are entirely uncut - It bears an unidentified signature, "CP" starred. Signed one-handed compasses are uncommon. It is in perfect original condition, without restoration or accident.