By A Mystery Man Writer
The compass is a remarkable instrument. Read about the history of the magnetic compass in this blog.
A magnetic compass in a 45 mm diametre, aluminium case. Features a glass top and ring. Comes with plastic pouch.
Magnetic Compass
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The Magnetic Compass - EcoClipper
What is a magnetic compass and how does it work?
Maritime Magnetic Compasses for Precise Navigation on Board Ships
What is a magnetic compass and how does it work?
Brunton 8010 Eco Compass F-8010-ECO B&H Photo Video
Maritime Magnetic Compasses for Precise Navigation on Board Ships
Ship's Magnetic Compass Dry And Wet Compass With Their Care, Maintenance And Bubble Removal
Ship's Magnetic Compass Explanation & Sketches - Oways Online
Nasa Clipper Compass System (010.022)