Antique Lord Kelvins Azimuth Mirror Nautical Navigation Prism Circle & Case

Description

Lord Kelvin's Azimuth Mirror and dovetailed wooden storage carrying case. Made by Kelvin, Bottomly & Baird Ltd for Marine Instruments … more Lord Kelvin's Azimuth Mirror and dovetailed wooden storage carrying case. Made by Kelvin, Bottomly & Baird Ltd for Marine Instruments Ltd. Circa 1910-30s. Made in Great Britain.

An azimuth circle is a navigation instrument in the form of a brass ring with sights that attaches to the top of a compass to enable the user to take accurate bearings on the sun and terrestrial objects.

Dimensions:
Case - 12" x 12" x 6.5" / Mirror - 10.5" x 5.5" (Width x Depth x Height) less