The 12"/50 caliber Bethlehem gun was a US naval gun designed in 1910 as the main armament for the Argentine Navy's dreadnought battleships of the Rivadavia class.
a main gun of the battleship ARA Moreno during its construction, sometime between 1910 and 1915.
12"/50 Bethlehem steel gun on a coastal mount for Chile
Main deck and guns of Moreno
Rivadavia-class battleship
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The Rivadavia class consisted of two battleships designed by the American Fore River Shipbuilding Company for the Argentine Navy. Named Rivadavia and Moreno after important figures in Argentine histor
Rivadavia c. 1914–15, possibly on a speed trial.
The gun trials of the Brazilian dreadnought Minas Geraes, the ship that began the dreadnought race. Here, all guns capable of training to the port side were fired, forming what was at that time the heaviest broadside ever fired off a warship.
Rivadavia under construction, 2 December 1912.
Rivadavia's launch, 16 August 1911.