ANTI-AIRCRAFT GUNS AT SAN FRANCISCOThree batteries of 3-inch antiaircraft guns protected the coastal defense emplacements of the Golden Gate.
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![]() A three-inch anti-aircraft gun rises from its camouflaged emplacement in the sand dunes of Fort Funston, on the southern shoreline of San Francisco. The battery crew built underground living quarters connected to the guns by passageways. |
![]() Later in the war, 90mm AA emplacements reinforced the original defenses at Fort Funston. |
![]() The sandy terrain has eroded from under the concrete gun plug of the Funston AA battery. |