Pocket Compass Smithsonian Institution

Lewis's Compass (U.S. National Park Service)

Proceedings of the Entomological Society of Washington, Volume 24

William Watkins, Bristol, Georgian Pocket Compass c.1815 – Compass

National Museum of American History

Pocket Compass Smithsonian Institution

The Relic Hunters Who Saved American History

Pocket compasses 1

Pocket compasses 1

The beauty is in the details: A peek inside the amazing world of a

Pocket Compass Smithsonian Institution

Pocket compasses 1

Pocket compasses 1

Lewis and Clark Compass, Corps of Discovery

Miner's Dial Smithsonian Institution

Surveying Compass with Folding Sights