Vintage DAVIS INSTRUMENTS #144 ARTIFICIAL HORIZON

Description

Artificial horizons were used by sailors of sailing ships when they were becalmed. This condition was frequently accompanied by fog which obscured the natural horizon. Also used to practice navigation skills, with easy to use set of instructions. Please inspect photos closely to best determine item's condition. Feel free to contact seller with any questions or requests. Shipping to USA only at this time, FedEx, UPS, or USPS standard shipping. Thank you for viewing this item.
Artifical horizons answer the need of every sextant user who cannot depend on a natural sea horizon. Use for backyard practice, finding exact position when inland, and making exact sextant shot on foggy mornings.
To use, fill with water and read the angle of the reflected sun with your sextant. Half your sextant reading is the sun\'s angle above the true horizon. Windproof and corrosion resistant, the reflecting surface is completely enclosed.
Comes with two sun shades, a lid and full directions.
Compact 6" x 4" x 1-1/2".