The Marbles Large Pocket Compass is a 1-3/4 inch brass compass with a revolving black face, a reproduction of the original Marbles pattern.
At 1-3/4 inches this is the large version, and dial size is the whole argument. A bigger face is read faster and more accurately, and the graduations are far enough apart to hold a bearing rather than guess at one. That makes it a primary navigation instrument where the 1 inch pocket version is a quick-check tool.
The revolving face sets a bearing that stays set, so a heading is held without recalculating each time the needle is checked. Brass is used because it is non-magnetic and cannot pull the needle off north the way a steel case would, and Marbles has built this pattern since the early 1900s. Explore more navigation compasses.
- 1-3/4 inch dial, the large pocket version
- Bigger face reads faster and more accurately
- Revolving bezel holds a set bearing
- Reproduction of the original Marbles compass
