NauticalMart Old Modern Handicrafts Binnacle Compass Collectible They use the earths magnetic field to indicate north, allowing travelers to confidently find their way through unknown terrains This is a fully functional binnacle compass that was used to hold a ships magnetic compass It is made of solid brass tinted with a golden glow A floating dial compass is securely fitted inside which can be seen through the glass window There is also a fully functional oil lamp on the side of the compass used to light up the compass at night