quintant
Date1804-1826
Inventory Number5308
ClassificationQuintant
Subject
Maker
Edward Troughton
1753 - 1835
Cultural Region
Place of Origin
Dimensions8 x 11.2 x 10 cm (3 1/8 x 4 7/16 x 3 15/16 in.)
box: 10.2 x 12 x 14 cm (4 x 4 3/4 x 5 1/2 in.)
box: 10.2 x 12 x 14 cm (4 x 4 3/4 x 5 1/2 in.)
Material
AccessoriesMahogany keystone box, stenciled in white paint on top and side of lid "P. Townsend"; 2 Telescopes; 1 Eyepiece
DescriptionThis quintant has a brass double spaced frame, with the scale engraved directly onto the brass limb, graduated from -5° to 150° by 1° subdivided to 15'. There is also a reinforced brass index arm with brass vernier, a swinging magnifier, and a fine adjustment screw. The adjustable index mirror has three fixed glass shades, and there is also a horizon glass with three fixed shades. An adjustable sight vane for telescope is present. It has a fixed wooden handle.
Signedon limb: Troughton, London
George Whitbread
Date: 1828-1844
Accessories: Mahogany keystone box, telescopes (3), sight tube (1), adjustment tool, tube
Object number: 5307
McMillan & Talbott
Date: 1862-1873
Accessories: keystone mahogany box, sight tube( 3.25"), telescopes (2: 3.25" and 7.375"), eyepiece shade
Object number: 5305
Spencer, Browning, & Company
Date: 1845-1860
Accessories: Keystone mahogany box, sight tube, telescopes (2, 3.25" and 7"), sunshade, adjustment tool
Object number: 5317
William Gerrard
Date: 1862-1890
Accessories: rectangular mahogany box, telescopes (2), sight tube, eyepiece shade, eyepiece
Object number: 5263
Heath & Company, Ltd.
Date: 1875-1890
Accessories: 7 1/8" telescope, 3 1/4" shade tube, 3 1/4" telescope, eyepiece shade, and mahogany box. with "4" on lid and "H" on front
Object number: 5311
Peter A. Feathers
Date: 1842-1874
Accessories: Square mahogany box, one shade tube (8.4 cm), one erecting telescope (8.3 cm), and one inverting telescope (18.3 cm) with four crosshairs, one pin tool
Object number: 5333
Riggs & Brother
Date: 1820-1840
Accessories: keystone mahogany box, telescope, eyepiece shade
Object number: 5245
Ebenezer Hoppé
Date: circa 1809
Accessories: On 6/23/98, a telescope was found (1998-1-1412) that may belong to part of this sextant.
Object number: 5309
Edward Troughton
Date: circa 1810
Accessories: Square walnut box, U-shapedhandle assembly, additional handle, eye shade tube, telescope, eyepieces (2), screw driver, eyepiece shades (2), vernier magnifier
Object number: 5316
Benjamin Messer
Date: 1800-1820
Accessories: Keystone mahogany box, telescope
Object number: 5310
Spencer, Browning, & Company
Date: 1843-1850
Accessories: box with key, adjustment tool, telescope, eye tube, eyepiece shade
Object number: 5248