Results for "Observatories"
Secretary Charles G. Abbot with Solar Boiler
- Date: c. September 30, 1936
- Creator: Unknown
- Creator: Unknown
Plan for the proposed National Museum of Engineering and Industry
- Date: 1925
- Creator: Unknown
- Creator: Unknown
Samuel P. Langley
- Date: 1887
- Creator: Unknown
- Creator: Unknown
John Quincy Adams Portrait
- Date: c. 1840s
- Creator: Unknown
- Creator: Unknown
Engraving of John Quincy Adams
- Creator: Unknown
- Creator: Unknown
Samuel P. Langley
- Creator: Unknown
- Creator: Unknown
Sidney R. Galler
- Creator: Unknown
- Creator: Unknown
Secretary Samuel P. Langley
- Date: c. 1895
- Creator: Unknown
- Creator: Unknown
Langley's Aerodrome Shop, South Shed
- Date: 1900
- Creator: Unknown
- Creator: Unknown
Hodgkins Medal
- Date: 1920
- Creator: Unknown
- Creator: Unknown
Secretary Samuel P. Langley
- Date: 1901
- Creator: Unknown
- Creator: Unknown
SI Officials at East Door to SI Building
- Date: 1915
- Creator: Unknown
- Creator: Unknown
