Azimuth compass mounted on gimbals. A mahogany box with brass frame is suspended inside a second box with handles. Hand-made and hand-colored windrose, above which pivots a broad magnetic needle with garnet bearing cup. This needle shape was suggested in 1774 by Jan Hendrik van Swinden. A small mirror is set at an angle at the center of one of the sides of the box. The sights are missing. Provenance: Lorraine collections.