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
ARA Rivadavia was an Argentine battleship built during the South American dreadnought race. Named after the first Argentine president, Bernardino Rivadavia, it was the lead ship of its class. Moreno w