A very high quality instrument for the serious navigator or professional compass adjuster. The gimballed polished brass bearing card is 6 1/4 in. in diameter and is graduated in 1° increments. The heading indicator may be locked. The sighting vanes may be locked independently of each other, and the entire weighted gimbal may be locked as well. The forward sighting vane folds down for storage. A sun compass vane screws quickly into the center for shadow measurements of sun bearings. The pelorus quick mounts into a deck shoe, two of which are supplied for installation where desired. The unit is supplied in a functional plywood box. Overall dimensions are as follows: Hgt (forward vane extended) -14 in.,Hgt (vane folded) -9.5 in., Width (maximum) -8 in. Wgt-7.25 lbs., Case ext. dim. 10hx11.5wx10.25d inches., Wgt total -16 lbs.