A vintage WWII Japanese Aviation Magnetic Compass that still functions. After all these years it still indicated due North. The dial is reversed presumable so as to be viewed through a reflection of a mirror. There are four indicator needles labeled 0,1,2,3 respectively The scale is from 0 to 10 degrees. Characters on side of instrument indicate manufacturer, location (Tokyo), model and serial number. The whole unit is spring mounted on base.