Glass Positive of the Moon

Creator – Henry Draper
Medium – Glass positive with resin
Source – National Museum of American History, Kenneth E. Behring Center

A doctor by trade, Henry Draper was an early pioneer of astronomical photography. This photograph is one of many high-quality images of the Moon that he captured. The first to capture a photograph of the Great Nebula of Orion, Draper went on to photograph the stellar spectrum and create the first wide-angle image of a comet's tail.

Via the (awesome) Smithsonian Photography Initiative