Nautical Antique Brass Pocket Compass Vintage Marine Ship Instrument Compass Pocket Gift. Size :- 2" Inch Material Used :- Solid Brass Color :- Antique Finish Maritime Nautical Pocket Compass,Use it to navigate while hiking or camping. Compasses have been used for years to help traveler determine their location as well as the location of their destination. Used while hunting, camping, hiking or working, the compass can be a lost individual's most prized possession.