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Twin reflecting and refracting telescopes on observatory mounting, 1885

Twin reflecting and refracting telescopes on observatory mounting, 1885

1885
Cassegrain reflecting telescope, 1762-1774

Cassegrain reflecting telescope, 1762-1774

1762-1774
Brass Cassegrain reflecting telescope of 3 inch aperture, with altazimuth mount, stand and accessories

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

1790-1835
Reflecting telescope with trolly stand, 1767-1768

Reflecting telescope with trolly stand, 1767-1768

1767-1768
Brass component from "Twin Equatorial" Telescope

Brass component from "Twin Equatorial" Telescope

1885
Cassegrain reflecting Telescope of 2 1/2-inch aperture

Cassegrain reflecting Telescope of 2 1/2-inch aperture

1756-1758
Cassegrain reflecting Telescope of 2 1/2-inch aperture with claw foot pillar stand

Cassegrain reflecting Telescope of 2 1/2-inch aperture with claw foot pillar stand

1756-1758
"Twin Equatorial" Telescope, 1885. Made by Sir Howard Grubb, consisting of a 20in. Reflecting Telescope and a 7in. Refracting Telescope (by Cooke) mounted together on one equatorial stand. With Grubb electric control gear

"Twin Equatorial" Telescope

1885
Brass Cassegrain reflecting telescope of 3 inch apertureby James Watson, London with altazimuth mount on a claw foot stand. Acessories include, a finder telescope, 2 eyepies and a tin box for the speculum mirror.

Brass Cassegrain reflecting telescope of 3 inch apertureby James Watson

1790-1835
Reflecting telescope with 9-inch speculum mirror by James Short, London [6/1364 = 49] on equatorial stand arranged to be used as a Gregorian, Cassegrainian or Newtonian.

Reflecting telescope with 9-inch speculum mirror by James Short

1767-1768
Brass cylinder, possibly lens for the "Twin Equatorial" Telescope, 1885. Made by Sir Howard Grubb, consisting of a 20in. Reflecting Telescope and a 7in. Refracting Telescope (by Cooke) mounted together on one equatorial stand. With Grubb electric control gear

Brass cylinder, possibly lens

1885