Results for "Smithsonian Institution. Archives"
John A. Roebling
- Date: c. 1930?
- Creator: Unknown
- Creator: Unknown
Smithsonian Astrophysical Observatory Employees
- Date: 1930-1940?
- Creator: Unknown
- Creator: Unknown
Harvard-Smithsonian Center for Astrophysics
- Date: c. 1985
- Creator: Unknown
- Creator: Unknown
Smithsonian Astrophysical Observatory, South Yard
- Date: c. 1900
- Creator: Unknown
- Creator: Unknown
Plan of the Astrophysical Observatory
- Creator: Unknown
- Creator: Unknown
Mt. Wilson, California
- Date: c. early 20th century
- Creator: Unknown
- Creator: Unknown
Mt. Harquahala, Arizona
- Creator: Unknown
- Creator: Unknown
SAO Testing Fabric
- Date: c. 1940-1945
- Creator: Unknown
- Creator: Unknown
Mt. Harquahala, Arizona
- Creator: Unknown
- Creator: Unknown
Operation Moonwatch in Philippines
- Date: 1958
- Creator: Unknown
- Creator: Unknown
Mt. Harquahala, Arizona
- Date: 1924
- Creator: Unknown
- Creator: Unknown
Moonwatch Volunteers, 1965
- Date: 1965
- Creator: Unknown
- Creator: Unknown
