Results for "Observatories"
W.B. Ellison and Frederick A. Greeley
- Date: 1920
- Creator: Unknown
- Creator: Unknown
Giuseppe Colombo at Work
- Date: 1974
- Creator: Unknown
- Creator: Unknown
Mt. St. Katherine, Egypt
- Date: 1933
- Creator: Unknown
- Creator: Unknown
Mt. St. Katherine, Egypt
- Date: c. 1933
- Creator: Unknown
- Creator: Unknown
Tennis Courts Behind SI Building
- Date: 1920
- Creator: Unknown
- Creator: Unknown
Secretary Charles G. Abbot Playing Tennis
- Creator: Unknown
- Creator: Unknown
Mt. Montezuma, Chile
- Date: c. 1940-1945
- Creator: Unknown
- Creator: Unknown
Mt. St. Katherine, Egypt
- Date: 1933
- Creator: Unknown
- Creator: Unknown
Secretary Abbot Carrying the Radiometer up Mount Wilson
- Date: c. 1930?
- Creator: Unknown
- Creator: Unknown
Dr. Earl S. Johnston
- Date: 1936
- Creator: Unknown
- Creator: Unknown
Moonwatch Volunteers, 1965
- Date: 1965
- Creator: Unknown
- Creator: Unknown
SAO Equipment Outside Smithsonian Institution Building
- Date: 1931
- Creator: Unknown
- Creator: Unknown
