Glass positive:- E.E. Barnard
- Made:
- 1911 in Mount Wilson
- photographer:
- Edward Emerson Barnard
- maker:
- Science Museum
Glass positive:- E.E. Barnard, Mount Wilson Observatory, 1911, November 19, 60-inch Reflector, equivalent focal length, 100ft
Glass positive:- E.E. Barnard, Mount Wilson Observatory, 1911, November 19, 60-inch Reflector, equivalent focal length, 100ft