top of page
Octant 2.jpg

Octant

Large 17 inch Octant George Adams I

Georges Adams 1. Type A vernier. in Box

1770

Large 15 1/2 inch Octant Thomas Ripley

Thomas Ripley London for David Bartholomo Aug 23 .1774. rare Fiducial scale and wooden indexarm

1774

12 Inch Octant by Benjamin Martin

With very fine adjusting system at clamping screw. London Type A Vernier in other box

1780

15 3/4 inch Mahogany Octant by Gilbert & Wright

Large Octant Gilbert & Wright London .
The anker on the scale devision referce to the dividing machine of Jesse Ramsden.
Sold by F.W. Lincoln Jr. & Co Boston

1790

15 inch Ebony Octant of Wilkinson & Son

Wilkinson & Sons London, Ebony Octant. The small anker refers to the mechanical dividing around 1800 according to R.H. Baker

1820

11 In Venier octant by Spencer Browning & Co

Spencer. Browning & Co. London, ebony octant of 11 inch

1850

5 Inch Sounding Octant Vernier by The Elliott Borthers

Elliott Brothers London. Sextant Nr.1006 in box

1860

9 3/4 inch Ebony Octant Plaskett Cardiff & London

Plaskett Cardiff & London, with sightingtube and peephole in box

1860

9 1/2 Inch Brass Octant Henry Hughes & sons in box

Messing octant from Herny Hughes & son with A frame vernier in a box

1875

7 1/2 Martin Petersen Danisch 'octant'

Martin Petersen Svendborg Nr 8504

1958

bottom of page