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ANTIQUE SEXTANT. No.4
ANTIQUE SEXTANT. No.4
An early 19th Century unsigned diamond frame navigators Sextant.
The silver scale is engraved from -5 degrees to 150 degrees and can measure angles up to 128 degrees, it is divided into 15 minute increments. The silver Vernier scale reads from 0 to 15 seconds of arc and the index arm if fitted with a swinging scale magnifier.
The Sextant has a radius of 8 inches / 20cm and a height of 10 inches / 25cm.
This antique Sextant is contained within its original keystone shaped hardwood box. It has two telescopes and one eye piece sun filter.
Front side of the antique sextant with telescopes, eye piece filters and accessories.
A close up of the antique sextant showing silver scale.
Exterior of the hardwood sextant carrying case / storage box.
Reverse side of the antique sextant and accessories.
Unusual feature that the Vernier scale is located above the arc scale.
Trade label inside the box by William Gerrard, South Castle Street, Liverpool.
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