 |
Online Show 2020
Essentials Octant |
|
Online Show 2020
Essentials Octant |
 |
|
 |
|
 |
|
Large Regency period English vernier octant
by Joseph Gaitskill, London |
|
The name 'octant' derives from the Latin 'octans' meaning eighth part of a circle, referring to the angle of 45 degrees between the arms of the frame. The scale is divided into 90 degrees, or one fourth of a circle. John Hadley (1682-1744) described an instrument of this sort to the Royal Society of London in 1731 and obtained a British patent in 1734. Accordingly, octants are sometimes known as Hadley quadrants.
|
|
$3900.00
|
|
Ask Us About: 8675
Call us anytime to discuss this or any other item, as well as our convenient terms.
|
 |
 |
 |
|
Hanes & Ruskin Antiques and Appraisals Joy Hanes 97 West Main Street Box 79 Niantic, CT 06357 860.304.2146 |