Master Gimbal Compass with Wooden Box New A compass (or mariner′s compass) is a navigational instrument for finding directions on the Earth. Mariner′s compasses can have two or more magnetic needles permanently attached to a compass card. These move freely on a pivot. A lubber line, which can be a marking on the compass bowl or a small fixed needle indicates the ship′s heading on the compass card. Traditionally the card is divided into thirty-two points (known as rhumbs), although modern compasses are marked in degrees rather than cardinal points. The glass-covered box (or bowl) contains a suspended gimbal within a binnacle. This preserves the horizontal position. This charming solid brass compass is a perfect addition to a personalized desk or home office. * Size: 3.25" x 4.5" x 4.5" * Solid brass compass, hardwood box * Hardwood outer box Thanks for looking.