Add automatic river gauge. After dialing the Potomac River Gauge, A.L. King, U.S. Weather Bureau observer, waits for the first buzz, then sets his stop watch which continues until the buzz signal is again heard then he stops the watch. The time interval between the two signals is converted into the
4 x 5 in. or smaller
- Date
- 1938
- Collection
- Harris & Ewing
- Archive
- Library of Congress (via Wikimedia Commons)
- Type
- photograph
- Original size
- 10,055 × 8,078 pixels
Public domainsafest
Reason: Harris & Ewing collection, given to the Library of Congress without copyright restrictions.
Read from: Commons licence category: PD-Harris-Ewing; 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 Harris & Ewing Photographs - Rights and Restrictions Inf.
Credit line
"Add automatic river gauge. After dialing the Potomac River Gauge, A.L. King, U.S. Weather Bureau observer, waits for the first buzz, then sets his stop watch which continues until the buzz signal is again heard then he stops the watch. The time interval between the two signals is converted into the" (1938). Harris & Ewing. Library of Congress, Prints and Photographs Division, via Wikimedia Commons. Public domain. https://commons.wikimedia.org/wiki/File:Add_automatic_river_gauge._After_dialing_the_Potomac_River_Gauge,_A.L._King,_U.S._Weather_Bureau_observer,_waits_for_the_first_buzz,_then_sets_his_stop_watch_which_continues_until_the_buzz_LCCN2016873378.jpgNeed photos for a whole script? Add Find Any Photo to Claude and ask for this one by its id: 270607.
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