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Oersted Compass Needle, 1828

Oersted Compass Needle, 1828

1828
Ebony and brass octant.

Ebony and brass octant.

1777-1810
Transit theodolite, British, 1816-1850

Transit theodolite, British, 1816-1850

1816-1850
Casket portrait in relief (Henry Swan's crystal cube)

Casket portrait in relief (Henry Swan's crystal cube)

1860-1865
Azimuth compass, British, 1811-1830

Azimuth compass, British, 1811-1830

1811-1830
Refracting Achromatic Telescope

Refracting Achromatic Telescope

1798
Diagonal Mercury Barometer with Hygrometer, 1763-1765

Diagonal Mercury Barometer with Hygrometer, 1763-1765

1763-1765
Simple theodolite, English, 1690-1725

Simple theodolite, English, 1690-1725

1690-1725
Altazimuth theodolite, British, 1816-1850

Altazimuth theodolite, British, 1816-1850

1816-1850
Apparatus used by Wheatstone in his early researches in spectrum analysis

Apparatus used by Wheatstone in his early researches in spectrum analysis

1830-1839
Compound Monocular Microscope, 1751-1800

Compound Monocular Microscope, 1751-1800

1751-1800
Clinometer rule, British Antarctic Expedition, 1901

Clinometer rule, British Antarctic Expedition, 1901

1816-1850
Pseudoscope, 1850-1860

Pseudoscope, 1850-1860

1850-1860
Solar Microscope, 1616-1856

Solar Microscope, 1616-1856

1818-1856
Gunner's calliper in electrum and ivory

Gunner's calliper in electrum and ivory

1816-1850
Solar microscope in case

Solar microscope in case

1788-1796
Daily Herald Photograph: Tithe War

Daily Herald Photograph: Tithe War

1936-06-24
Glover's sector

Glover's sector

1839-1850
Harris's electroscope

Harris's electroscope

1834-1849
Instrument to demonstrate "Persistence of Vision"

Instrument to demonstrate "Persistence of Vision"

1820-1840
Portable transit instrument with striding level and accessories

Portable transit instrument with striding level and accessories

1816-1850
double image eyepiece micrometer

double image eyepiece micrometer

1784-1798
6-inch circular protractor

6-inch circular protractor

Pulley Blocks

Pulley Blocks

1814-1851
Pulley Blocks

Pulley Blocks

1814-1851
Protractor, semi-circular

Protractor, semi-circular

Circular Protractor

Circular Protractor

1816-1850
Double sounding sextant.

Double sounding sextant.

1806-1859
Reduction plate by Jones

Reduction plate by Jones

1816-1850
Case for refracting telescope of 3 1/2-inch aperture by Thos Jones

Case for refracting telescope of 3 1/2-inch aperture by Thos Jones

1815-1850
Electromagnetic engine, about 1840

Electromagnetic engine, about 1840

1836-1845
Portable transit instrument of 2¼-inch aperture by Thomas Jones, London, with striding level, lamp and glass screen in a fitted box. Accessories include 7 glass levels, 1 magnifier, 2 eyepieces, 2 dark slides and a micrometer slide.

Portable transit instrument of 2¼-inch aperture by Thomas Jones

1816-1850
Double sounding sextant made by Thomas Jones, London, about 1830. Two polished brass sextant frames and limbs connected parallel to each other by pillars and a brass plate; two wooden handles, one the front the other on the back of the frames. Signed on the limb of the upper sextant: Thomas Jones 62 Charing Cross London. Marked on the crossbar of the upper sextant: D.170. Two inlaid silver scales, each from -2° to 143° every 20', measuring to 128°. Two silver verniers both to 30". Two index arms, the tangent screw and clamping screw is on top of the upper arm; the lower tangent screw and clamping screw are on the back of the lower frame. No shades. Adjustment of the index and horizon glasses by square-headed screws and a detached key (not found). The magnifier on the upper sextant is on a 80-mm swivelling arm; that on the lower sextant is on a 100-mm swivelling arm mounted on the back of the frame. Threaded telescope bracket in two parts, fitted for correcting collimation error; the bracket is fixed between the two frames. Telescope (165 mm) with a shade (red), erect image. Sight tube (155 mm). The limb of the lower sextant is fitted with a greatest angle clamp (see notes). Box not seen, WMB. A trade label for Thomas Jones, London taken from the box.

Double sounding sextant.

1825-1835
Telescope (achromatic) with double image eye piece, micrometer of the Ramsden form, said to have been the property of Lord Nelson. F.l. 43". Made by J. & W. Watkins, London

Telescope (achromatic) with double image eye piece

1785-1795
Electrostatic machine, wood frame, glass cylinder, metal fittings, by Watkins and Hill, 5 Charing Cross, London, second half 19th century

Electrostatic Machine, 1851-1856

1851-1856
Two ivory sectors by Holtzapffel & Co., 64 Charing Cross (B502; A54794)

Two ivory sectors by Holtzapffel & Co.

1839-1865
Artificial glass horizon, made by Thomas Jones, 62 Charing Cross, City of Westminster, London, around 1910. Consists of rectangular brass anodized base holding a blackened glass mirror plate with three levelling feet (lacking spirit level). Used by the British Hydrographic Office, marked with ownership number, F84 (adopted in February 1828).

Artificial black glass horizon.

1850-1861
Finder 10 3/8” by 7/8”, for refracting telescope by Thomas Jones, 1815-1850.

Finder for Refracting Telescope by Thos Jones

1815-1850
Key for wooden case, for refracting telescope by Thomas Jones, 1815-1850.

Key for Case for Refracting Telescope by Thos Jones

1815-1850
Circular protractor 6-inch, engraved "Watkins and Hill Charing Cross London"; divided in degrees and numbered 0 to 360 degrees; in wood case with inlaid brass plate engraved "H.O. ^ 7"

Circular brass protractor, 1818-1856

1818-1856
Wollaston type camera lucida by Watkins & Hill, in leather case, English, date 1836

Wollaston type camera lucida by Watkins & Hill

1836
Telescope "G10" engraved Thos Jones, Charing Cross, London, "3 1/2" O.G. body 3' 7 1/2" long 3 3/4" diam, 3 inverting eye pieces, 1 erecting eyepiece, tube with two powers, 2 dark glasses, 1 brass cap for eye end, finder 10 3/8" x 7/8", in mahogany box with key

Telescope "G10" engraved Thos Jones, Charing Cross, with case

1815-1850
Eyepiece fitted with dark glass, for refracting telescope by Thomas Jones, 1815-1850.

Eyepiece for Refracting Telescope by Thos Jones

1815-1850
Two clinometers, jointed-rule type, one by Thomas Jones, first half 19th century, ex Antartic Expedition 1901, the other unsigned

Two Clinometer rule, British Antarctic Expedition, 1901

1816-1850
Tube with two powers for refracting telescope by Thomas Jones, 1815-1850.

Tube with Two Powers for Refracting Telescope by Thos Jones

1815-1850
Bullock's circular protractor, 6 inch, divided on silver to 1/2 degree, reading by vernier to 1', with tubular radial arms; engraved "Thomas Jones, 62 Charing Cross, London" and "R.109", in case

Bullock's circular protractor

1816-1850
Eyepiece for refracting telescope by Thomas Jones, 1815-1850.

Eyepiece for Refracting Telescope by Thos Jones

1815-1850
Dip sector made by Thomas Jones, London, about 1845. Lacquered brass frame and index arm, polished limb, a hinged wooden handle. Signed on the limb: Thomas Jones 62 Charing Cross London. Marked on the limb: I 1. Inlaid silver scale from -5° to 40° every 10' (from left to right). Silver vernier by 10", zero at the left. The double-ended tangent screw and the clamping screw are on the back of the index arm. No shades. Index-glass adjustment by screw; adjustment of the horizon glass by capstan screws. A detached magnifier. Threaded telescope bracket in two parts, fitted for correcting collimation error by capstan screws; perpendicular adjustment by rising-piece and a milled knob. Telescope in two parts at a right angle, containing a prism; a shaded eyepiece (grey). No box. The observer looks through the telescope and sees reflections of the horizon on either side of him, at an angle of 180°. The horizons are brought into one line by moving the index arm, and the dip or rise of the horizon is read from the scale. I 1 was the Hydrographic Office serial numbering adopted in February 1828, where I was the letter presumably given to dip sectors.

Brass dip sector.

1840-1850
Pair of pulley blocks

Pair of Pulley Blocks

1814-1851
Ticket, British Railways, for the coronation of Queen Elizabeth, Charing Cross Railway Bridge Stand, 2nd June 1953, red card, 5" x 8". 2 copies.

Ticket for coronation of Queen Elizabeth, Charing Cross Railway Stand

1953