This vintage maritime sextant serial no 2300 made by B. Cooke & Son of Hull, is dated 28th December 1962, and comes complete with its original certificate of examination fixed to the inside case lid. 

B. Cooke & Son Ltd was founded in 1867 by optician and clock maker Barnard Cooke, brother of the better known instrument maker Thomas Cooke of York. The business moved several times from its original Hull premises, expanding successfully into chronometers and sextants, eventually being sold to Henry Hughes & Son in 1918.

Fitted in its original wood case with key, it includes sun filters and a 6×30 monocular viewing scope with non-reflective optics, making it fully functional and suitable for precise marine navigation.

The instrument is in full working order, with no damage to the lenses or mirrors, and is equipped with a micrometer for fine adjustments, a vernier scale (125 / -0.5) for precise readings, and a nut adjusting pin. 

Also included is a 1940s Rude Star Finder & Identifier set (US Navy Hydrographic Office, No. 2102-C, AN Type 1), produced by the Hydrographic Office in Washington under the authority of the Secretary of the Navy. The set includes seven clear plastic altitude-azimuth templates for use at different latitudes up to 85° north and south, an instruction card, and a leatherette container missing much of its stitching.

In good condition all round, the case measures 320mm x 290mm x 160mm, weighs just over 4.3kgs unpacked and 6kgs packed including the Star Finder set.

 All buyers please note: due to weight, delivery will be by courier and therefore it is very important that a contact telephone number be entered at checkout stage.
 
Please study the photos as they are part of the description, and I will be happy to answer any questions if I can.

Please check out my other auctions for more interesting items.


Delivery cost.
Free UK delivery 

International shipping will vary significantly, therefore please message me to establish shipping costs to your country.
 
* Overseas buyers please note that Import duties, taxes & charges are NOT included in the item price or shipping charges. These charges are the buyer’s responsibility, so therefore please check with your country’s customs office, to determine what additional costs if any will be, prior to bidding/buying.