Standard clock, Naval Observatory
5 x 7 in. or smaller
- Date
- 1909–1919
- Collection
- National Photo Company
- Archive
- Library of Congress (via Wikimedia Commons)
- Type
- photograph
- Original size
- 4,407 × 6,086 pixels
Public domainsafest
Reason: National Photo Company collection at the Library of Congress: no known restrictions.
Read from: Commons licence category: PD-National Photo Company; no CC BY, CC BY-SA, GFDL or deletion tag on the file page; permission field: No known restrictions on publication. For more information, see National Photo Company Collection - Rights and Restricti.
Credit line
"Standard clock, Naval Observatory" (1909–1919). National Photo Company. Library of Congress, Prints and Photographs Division, via Wikimedia Commons. Public domain. https://commons.wikimedia.org/wiki/File:Standard_clock,_Naval_Observatory_LCCN2016820980.jpgNeed photos for a whole script? Add Find Any Photo to Claude and ask for this one by its id: 363248.
More like this

Naval Observatory tran. clock, switchboard & chronograph time rec. *Abstract/medium:; 5 x 7 in. or smaller
1909–1919 · Library of Congress

G.M. Clemence Ast. Astronomer file records from the reorder. On the right is the time signal transmitting clock connected by direct wire to Arlington and Annapolis. All signals are broadcast from there and also from San Francisco to Honolulu and Balboa
1936 · Library of Congress

NAVAL OBSERVATORY. TIME BROADCASTING INSTRUMENTS
1917 · Library of Congress

Setting the clocks hands by radio. U.S. Dunmore Bureau of Standards who adopted clock to radio control
1924 · Library of Congress

NO CAPTION
1926 · Library of Congress

Device takes time signal from pendulum of clock. ingenius apparatus takes a time signal from the pendulum. A clock without mechanical contact and the time thus. accurate to a small fraction of a second variation. day. This device was invented by R.E. Gould, Chief of Time Section of the
1926 · Library of Congress

Chas. C. Wylie setting back clock at Naval Operatory
1918–1928 · Library of Congress

Naval observatory transit telescope which observes the "Clock Stars". secure ? the time ? *Abstract/medium:; 5 x 7 in. or smaller
1909–1919 · Library of Congress