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Demainbray's polemoscope

1701-1752

Large Diffraction Astronomical Spectroscope to Thorp's design with two prism

1910-1920

Scioptic ball, ostensibly by George Adams

Whirling speculum mirror with components

1762

Reflecting telescope with trolly stand, 1767-1768

1767-1768

Brass Gregorian reflecting telescope by George Adams

1734-1796

Gregorian reflecting telescope of 6 inch aperture and 30 inch focal length by Thomas Morton

1817-1862

Gregorian reflecting telescope of 1 1/4 inch aperture by Watkins

1747-1784

Small Newtonian telescope, on stand (not original)

Gregorian reflecting telescope, 1748-1788

1748-1788

Solar microscope accessory

1753

Primary speculum mirror of 13 1/4-inch diameter

1840-1850

Brass Cassegrain reflecting telescope of 3 inch aperture, with altazimuth mount, stand and accessories

1790-1835

Scioptic ball, ostensibly by George Adams

Scioptic ball and mirror

Aquatic microscope by J. Cuff with extra stand No. 34 and fishskin case

1745

Gregorian reflecting telescope

Brass Gregorian reflecting telescope

1850-1855

Gregorian reflecting telescope of 2 5/8 inch aperture and 16 inch focal length by Thomas Wright

1826-1842
Gregorian telescope

Gregorian telescope, c. 1745.

1740-1750
Brass Gregorian reflecting telescope of 2 1/2-inch aperture by James Short, London [244/1063=9.6], on an altazimuth mounting with box foot stand made from telescope case containing 2 eyepieces, brass mirror box and accessories.

Brass Gregorian reflecting telescope of 2 1/2-inch aperture by James Short

1760-1762
Brass Gregorian reflecting telescope of 3-inch aperture, by John Bird, London with altazimuth mount on claw foot stand, inscribed "J. BIRD"

Gregorian reflecting telescope, 3-inch aperture and altazimuth mount

1750-1760
Brass Gregorian reflecting telescope of 7-inch aperture, 2 eye pieces, two tin boxes for 6 concave mirrors, with mahogany tripod stand (box to J.F.W. material 23/8/28)

Brass Gregorian reflecting telescope of 7-inch aperture

1800-1890
Four primary metal speculum metal mirrors, three of 4 1/2- inch diameter and one of 8 5/8 inch mirror with central circular hole. Donated by Lieutent General A, de Gorloff who lived at Nasmyth's former home of Hammerfield near Penshurst in Kent. Four similar mirrors were originally donated but one was returned to be replaced by the larger one [see file for details].

Four primary metal speculum metal mirrors

1840-1850
Elliptical plane mirror (diagonal flat for Newtonian telescope) minor axis 1 1/2", major axis 2" in (full) soldered in usual way to circular brass disc, cylindrical cover of brass 1 3/4" deep, cover of brass 1 3/4" deep, cover and brass disc inscribed 1 "A4"

Elliptical plane mirror (diagonal flat for Newtonian telescope) minor axis 1 1/2"

1780-1820
Scioptic ball probably made by Adams, George, 1750-1795

Scioptic ball probably made by Adams

Brass Gregorian reflecting telescope of 2 3/4-inch aperture by Edward Nairne, London on altazimuth mounting with claw foot tripod and wooden case with no key.

Brass Gregorian reflecting telescope of 2 3/4-inch aperture by Edward Nairne

1749-1774
Brass Gregorian reflecting telescope of 2 1/2 inch aperture by James Watson, London with altazimuth mount on claw foot stand and wooden case. Accessories include 2 eyepieces and 2 secondary mirrors with metal tinplate box.

Brass Gregorian reflecting telescope of 2 1/2 inch aperture by James Watson

1780-1824
Gregorian Reflecting Telescope of 4 3/8-inch aperture by James Short, London [42/1195 = 24] on a folding claw-foot pillar stand.

Gregorian Reflecting Telescope of 4 3/8-inch aperture by James Short

1763-1765