Antique Sextant by Negretti & Zambra, London. 

Antique sextant by Negretti & Zambra, London.

A late 19th Century navigators Sextant with the classic three ring design frame.

The silver scale is engraved from -5  degrees to 155 degrees and can measure angles to 126 degrees, it is divided into 10 minute increments. The index arm has swinging scale magnifier, the silver Vernier scale reads from 0 to 10 seconds of arc.

This Sextant has a 6.5 inch radius.

The Sextant is engraved with the serial number 7479 and each telescope is also engraved with this number

This antique Sextant is in very good condition. It is contained within its original fitted hardwood box with carry handle. The Sextant is complete with two telescopes, a spare eyepiece, two eyepiece sun filters and mirror adjusting tool.

The last certificate of examination contained within the box is dated 1918, but this sextant was made circa 1890.