USS Billingsley (DD-293) firing her guns
Here we see the Clemson class destroyer USS Billingsley (DD-293) firing some of her guns while moving at speed in 1926. The original US captain says she was firing all four of her guns, but the port amidships gun can clearly be seen not to be in use.
How to cite this article:
Rickard, J (24 November 2019), USS Billingsley (DD-293) firing her guns , http://www.historyofwar.org/Pictures/pictures_USS_Billingsley_DD293_firing_guns.html