~RARE 18th CENTURY LIFEBOAT/ BOX SEXTANT SIGNED

~RARE 18th CENTURY LIFEBOAT/ BOX SEXTANT SIGNED

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A late 18th century lifeboat or box sextant by Allan, London in it's original tin carrying case

Dimensions

3 x 1 1/2

Circa

1800

Country of manufacture

UK and Ireland

Categories: Navigational instruments, Calculating, Surveying Instruments & Mining, Engineering antiques

Description

A true rarity !!! Not only is this lifeboat or box sextant of unusual size and age, it is still housed in its’ original tin case to protect it from the elements !!! Signed “Allan, London”, it is attributed to either James or John Allan and dates to the turn of the 1800’s (or even slightly before). Wonderful knurling (roping) of the brass edges, bright brass construction(80 % lacquer intact) of the usual form. Silvered scale runs out to 140 degrees with vernier and magnifier. Simple sliding peep sight, mirrors intact, no light filters in this very early model, mechanically tight and functional (one screw missing-does NOT affect function). Unusual petite size of only 2 3/4″ diameter and an added bonus: the original, soldered tin, 3″ diameter canister for additional protection of the instrument in times of actual use !!! Here is an item for the true collector of these wonderful instruments of navigation.

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CA ScientificaOpticae

Scientifica Opticae

Mark Hacking (Scientifica Opticae Inc.) has been an avid collector/dealer for over 30 years. A former Science teacher, he has an innate love for anything natural or mechanical. Specializing in optical (microscopes, telescopes), surveying, medical, weighing and drawing instruments, he is an active participant of the Scientific Instrument Fair in London. Living in Stratford, Ontario, Canada, with his wife and two children; Mark looks forward to meeting as many fellow collectors as possible, and has a worldwide following on eBay (Sciopti).

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