Solid Brass and Hardwood 11.5-inch
Radius Octant with Hardwood Case
This is a beautiful and unique solid brass and hardwood reproduction of an early 1800's 11.5-inch radius octant (predecessor to the modern sextant).
The term "octant" means 1/8 of a circle, or 45 degrees.
Sextants and octants can measure twice the angle of the scale due to the arrangement of its mirrors.
Eighty degrees was regarded as a practical limit, although a reading of 90 degrees was possible for octants.
This Stanley London® octant is large and solid, measuring 11 1/4 inches (28.6 cm) by 14 inches (35.6 cm) tall,
5 inches (12.7 cm) deep, and weighs 2 pounds, 9 ounces (1.2 kg).
To assist in reading the German Silver vernier scale, there is a hinged magnifier and six swing-arm filters.
This model does not have a telescope, just as most octants do not, and instead has the proper style brass adjustable peep site.
A large rounded hardwood handle is on the back of the octant.
The frame of each octant is marked "Stanley London 1830" and with a unique serial number.
A large beautiful blue felt-lined hardwood case with a front brass clasp is included with the purchase of this octant.
Custom brass plaques are available for the hardwood box.
Please note that even though this octant is fully functional, it is not calibrated and is not intended for navigation.
The octant with hardwood case sells for $275.
Part Number SOCTPPH.