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Four Inch Refracting Telescope

circa 1848-circa 1868

Four and a half inch refracting telescope made by J.B Dancer

circa 1860
Refracting telescope by J. B. Dancer, Manchester, c.1860. Pivoting leg attached near eyepiece which attaches to bracket on tripod with a split pin. Rough elevation would have been fixed with extant milled nut on outer tube; fine elevation with rack and pinion on inner tube (milled nut missing).

Refracting telescope by J. B. Dancer

circa 1860
Smythian telescope, c.1824, a refractor of 3 3/4 inch aperture and 50 inch focal length by Thomas Robinson, Portland Place, London with optics by Charles Tulley in fitted box but without equatorial mount or stand. Separate fitted box contains 6 astronomical eyepieces, terrestrial eyepiece, cometary eyepiece, filter wheel, Herschel wedge, split-lens micrometer by Dollond, double-image micrometer by Thomas Robinson and related items including an occulting bar, graticle and ring (annular) micrometer. First used by Capt. W. H. Smyth at Bedford then given by him to Dr Lee at Hartwell House in 1828, later used by Dr N R Pogson from 1857 until 1860 at the Radcliffe and Hartwell Observatories and then at the Madras Observatory, India until 1891. Presented to the British Astronomical Association by the widow of Dr C. Michie Smith.

Smythian telescope, c.1824, a refractor of 3 3/4 inch aperture, 50 inch focal length, and accessories

1825-1829
Telescope by Wray, c 1875, complete on equatorial mounting with box of accessories and case.

Telescope by Wray, c 1875, on equatorial mounting with box of accessories and case.

1875
Wray four and a half inch refracting telescope, c1935. Also has a box of lenses, extension tubes, 5 eyepieces, dark glass filters and an observing chair and attachment for photography, and has an Equitorial mount for telescope.

Refracting Telescope

circa 1935
Three-inch refracting telescope on tripod, signed by Joshua Ronchetti, Manchester, c. 1840.

Three-inch refracting telescope on tripod

circa 1840
Refracting telescope of 2 3/4 inch aperture and 18 inch focal length by Dollond, London, on an adjustable equatorial mount with a fitted mahogany case. Accessories include, 4 eyepieces, a wedge and an ivory annulus that fits to the objective lens for illuminating cross-hairs.

Refracting telescope on equatorial mounting, 1790-1810

1790-1810
Three-inch refracting telescope, signed by Joshua Ronchetti, Manchester, c. 1840.

Three-inch refracting telescope

circa 1840