Radius measurer, plus older two-lamp radius gauge

Astronomy

1950-1975

Photograph of Drawing of Solar Chromosphere

Astronomy

1869

Photograph of Drawing of Solar Chromosphere

Astronomy

1869

One of eleven photographs, taken by Andrew Ainslie

Astronomy

1883

One of eleven photographs, taken by Andrew Ainsli

Astronomy

1883

One of eleven photographs, taken by Andrew Ainslie

Astronomy

1883

Solar Corona 1875 April 6, Siam, glass transparenc

Astronomy

1875

Photomultiplier tube, type 9558A, Cat. No.22/21 in

Astronomy

1967

Astrolabe, c.1650

Astronomy

1645-1655

Solar Corona 1878 July 29, Wyoming, glass transpar

Astronomy

1878

Component, portable transit instrument

Astronomy

Component, portable transit instrument

Astronomy

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

Astronomy

1815-1850

Objective 6 1/2-inch aperture Glass, for telescope, with mahogany case

Astronomy

1851

Wooden backstaff.

Astronomy

1733

Transparency, 15"x12", Orion Constellation (from F

Astronomy

1931

Drawing (13" x 11") of Lord Rosse's machine for gr

Astronomy

1915

Spiral Nebula in Serpens, N.G.C, 5921, Lick Obser

Astronomy

1912

Glass positive:- spiral Nebula in Libra, N.G.C. 58

Astronomy

1929

Glass positive:- Saturn, (photographs in light of

Astronomy

1927

Nebula in Cygnus

Astronomy

1910-07

Glass positive:- large eruptive prominence, J. Eve

Astronomy

1916

Glass positive:- Saturn, P. Lowell and V.M Slipher

Astronomy

1909-1921

Camera lucida with two neutral-density filters by

Astronomy

1850-1900

Atls circular slide rule by Gilson Slide Rule Comp

Astronomy

Photoheliograph of the Sun

Astronomy

1858-1861

Betts' portable terrestrial globe

Astronomy

1860-1870

An instrument for obtaining the correction of lunar distance

Astronomy

1850-1858

Planisphere, "Miroir d'Uranie", French but based o

Astronomy

1800-1850

Mars globe, 12-Inch diameter with plastic stand by

Astronomy

1997

One of seven engraved illustrations of the surface

Astronomy

1904

One of seven engraved illustrations of the surface

Astronomy

1904

One of seven engraved illustrations (photogravure)

Astronomy

1904

One of seven engraved illustrations of the surface

Astronomy

1904

Lunar longitude calculator

Astronomy

1880-1885

Reseau grid (200 x 200 mm) by P. Gautier, Paris wi

Astronomy

1884-1890

Lunarium (imperfect). Diameter of outer circle 1

Astronomy

1799-1801

Speculum Metal Mirror, 1840-60

Astronomy

1840-1860

Photograph of a spectroscope

Astronomy

1876

Photograph of an objective prism of Merz

Astronomy

1876

Speculum Mirror (dia. 5 3/4-inch) for Gregorian te

Astronomy

1750-1850

Pocket terrestrial globe

Astronomy

Artificial mercury horizon.

Astronomy

1845-1855

Brass eyepiece for the reflecting telescope of 9-inch aperture

Astronomy

1767-1768

Wooden support from English horary quadrant

Astronomy

1658

English horary quadrant, 1718-1747

Astronomy

1718-1747

Azimuth scale, on glass, for attaching to Philips

Astronomy

1916

Photoheliograph of the Sun

Astronomy

1861

Double image wedge micrometer by Dollond, box sold

Astronomy

1754-1769

Celestial globe, on later plain oak stand

Astronomy

1816-1820