Photograph film positive, 16" x 20" portion of the Moon,...
Photograph film positive, 16" x 20" portion of the Moon, pho
Photograph film positive, 16" x 20" portion of the Moon, photographed with the 100-inch Hooker Telescope of the Mount Wilson Observatory, 1919 September 15, region near the South Pole, including Arzachel, Alphonsus, Prolemaeus, Albategnius, size of image 14 3/4" x 18 1/2"