NAVAL OBSERVATORY. C.B. WATTS TURNING BACK THE CLOCK
Photograph shows C.B. Watts turning back a clock at the United States Naval Observatory, 3450 Massachusetts Ave., N.W., Washington, D.C.
![Naval Observatory, [Washington, D.C.], Longitude houses for determining difference in time between Wash. & Paris](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE5MTAvMDEvMDEvbmF2YWwtb2JzZXJ2YXRvcnktd2FzaGluZ3Rvbi1kYy1sb25naXR1ZGUtaG91c2VzLWZvci1kZXRlcm1pbmluZy1kaWZmZXJlbmNlLTEwMjQuanBn/40/30/webp "Naval Observatory, [Washington, D.C.], Longitude houses for determining difference in time between Wash. & Paris")
Naval Observatory, [Washington, D.C.], Longitude houses for determinin...
Public domain historic photograph of Washington DC, free to use, no copyright restrictions image - Picryl description
Naval Observatory. Main entrance of administration building, Naval Obs...
Photograph shows the administration building at the United States Naval Observatory, 3450 Massachusetts Ave., N.W., Washington, D.C.
![Prof. Hall of Naval Observatory with 26 inch telescope, [Washington, D.C.], 8/18/24](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzIwMTUvMTEvMjUvcHJvZi1oYWxsLW9mLW5hdmFsLW9ic2VydmF0b3J5LXdpdGgtMjYtaW5jaC10ZWxlc2NvcGUtd2FzaGluZ3Rvbi1kYy04MTgyNC0xMDI0LmpwZw%3D%3D/40/28/webp "Prof. Hall of Naval Observatory with 26 inch telescope, [Washington, D.C.], 8/18/24")
Prof. Hall of Naval Observatory with 26 inch telescope, [Washington, D...
Public domain historical photo, free to use, no copyright restrictions image - Picryl description
Prof. Hall of Naval Observatory with 26 inch telescope, Washington, D....
Photograph shows Professor Hall at the United States Naval Observatory, 3450 Massachusetts Ave., N.W., Washington, D.C. Title from unverified data provided by the National Photo Company on the negative or negat... More
Naval Observatory. Exterior of Naval Observatory with dome
Photograph shows buildings at the United States Naval Observatory, 3450 Massachusetts Ave., N.W., Washington, D.C. Item title devised.
Naval Observatory, Washington, D.C., 81824
Photograph shows the United States Naval Observatory, 3450 Massachusetts Ave., N.W., Washington, D.C. Title from unverified data provided by the National Photo Company on the negative or negative sleeve. Date f... More
Naval Observatory. Main entrance of administration building, Naval Obs...
Photograph shows the administration building at the United States Naval Observatory, 3450 Massachusetts Ave., N.W., Washington, D.C.
![Prof. Hall of Naval Observatory with 26 inch telescope, [Washington, D.C.], 8/18/24](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzIwMTUvMTEvMjUvcHJvZi1oYWxsLW9mLW5hdmFsLW9ic2VydmF0b3J5LXdpdGgtMjYtaW5jaC10ZWxlc2NvcGUtd2FzaGluZ3Rvbi1kYy04MTgyNC0xLTEwMjQuanBn/40/28/webp "Prof. Hall of Naval Observatory with 26 inch telescope, [Washington, D.C.], 8/18/24")
Prof. Hall of Naval Observatory with 26 inch telescope, [Washington, D...
Public domain photograph, 1910s-1920s portrait, American, free to use, no copyright restrictions image - Picryl description
NAVAL OBSERVATORY. TIME BROADCASTING INSTRUMENTS
Photograph shows instruments at the United States Naval Observatory, 3450 Massachusetts Ave., N.W., Washington, D.C.
NAVAL OBSERVATORY. C.B. WATTS TURNING BACK THE CLOCK
Photograph shows C.B. Watts turning back a clock at the United States Naval Observatory, 3450 Massachusetts Ave., N.W., Washington, D.C.
![Naval Observatory, [Washington, D.C., 8/18/24]](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE5MjQvMDEvMDEvbmF2YWwtb2JzZXJ2YXRvcnktd2FzaGluZ3Rvbi1kYy04MTgyNC0xMDI0LmpwZw%3D%3D/40/28/webp "Naval Observatory, [Washington, D.C., 8/18/24]")
Naval Observatory, [Washington, D.C., 8/18/24]
Public domain photograph of large public building, square, free to use, no copyright restrictions image - Picryl description
Prof. J.C. Hammond, astronomer at the Naval Observatory
A black and white photo of a man in a factory, Library of Congress Harris and Ewing collection Photograph shows Professor J.C. Hammond at the United States Naval Observatory, 3450 Massachusetts Ave., N.W., Was... More
U.S. Naval Observatory, Washington, D.C. during American Civil War
Photograph shows the Old Naval Observatory, Foggy Bottom, Washington, D.C. No. B1198. Original negative in National Archives Record Group 111: Records of the Office of the Chief Signal Officer, 1860-1985, Seri... More
![Naval observatory, [Washington, D.C.]](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE5MTYvMDEvMDEvbmF2YWwtb2JzZXJ2YXRvcnktd2FzaGluZ3Rvbi1kYy0xMDI0LmpwZw%3D%3D/40/30/webp "Naval observatory, [Washington, D.C.]")
Naval observatory, [Washington, D.C.]
Public domain historic photograph of Washington DC, free to use, no copyright restrictions image - Picryl description
NAVAL OBSERVATORY. C.B. WATTS TURNING BACK THE CLOCK
Photograph shows C.B. Watts turning back a clock at the United States Naval Observatory, 3450 Massachusetts Ave., N.W., Washington, D.C.
Naval Observatory. Exterior of Naval Observatory with dome
Photograph shows buildings at the United States Naval Observatory, 3450 Massachusetts Ave., N.W., Washington, D.C.
Naval Observatory. Telescope house, Naval Observatory
Photograph shows the telescope house at the United States Naval Observatory, 3450 Massachusetts Ave., N.W., Washington, D.C.
NAVAL OBSERVATORY. C.B. WATTS TURNING BACK THE CLOCK
A black and white photo of a man adjusting a clock, Library of Congress Harris and Ewing collection Photograph shows C.B. Watts turning back a clock at the United States Naval Observatory, 3450 Massachusetts A... More
Naval Observatory - Glass negative photogrpah. Public domain.
Photograph shows equipment at the United States Naval Observatory, 3450 Massachusetts Ave., N.W., Washington, D.C. Title from unverified data provided by the National Photo Company on the negatives or negative ... More
NAVAL OBSERVATORY. C.B. WATTS TURNING BACK THE CLOCK
A black and white photo of a man adjusting a clock, Library of Congress Harris and Ewing collection Photograph shows C.B. Watts turning back a clock at the United States Naval Observatory, 3450 Massachusetts A... More
NAVAL OBSERVATORY. C.B. WATTS TURNING BACK THE CLOCK
A man in a suit standing next to a grandfather clock, Library of Congress Harris and Ewing collection Photograph shows C.B. Watts turning back a clock at the United States Naval Observatory, 3450 Massachusetts... More
Naval observatory, Washington, D.C.
Photograph shows the United States Naval Observatory, 3450 Massachusetts Ave., N.W., Washington, D.C. Title from unverified data provided by the National Photo Company on the negative or negative sleeve. Date f... More
Naval Observatory, Washington, D.C., Longitude houses for determining ...
Photograph shows the United States Naval Observatory, 3450 Massachusetts Ave., N.W., Washington, D.C. Title from unverified data provided by the National Photo Company on the negative or negative sleeve. Date f... More
NAVAL OBSERVATORY. TIME BROADCASTING INSTRUMENTS
A black and white photo of a man in a suit, Library of Congress Harris and Ewing collection Photograph shows instruments at the United States Naval Observatory, 3450 Massachusetts Ave., N.W., Washington, D.C. ... More
Naval Observatory. Telescope house, Naval Observatory
Photograph shows the telescope house at the United States Naval Observatory, 3450 Massachusetts Ave., N.W., Washington, D.C.