Pershing Square: Presidio Cannons (U.S. National Park Service)

Pershing Square: Presidio Cannons (U.S. National Park Service)

Pershing Square (U.S. National Park Service)

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Pershing Square, Presidio Picnic Sites

Pershing Square: Presidio Cannons (U.S. National Park Service)

Presidio of San Francisco - Wikipedia

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Park Archives: Presidio of San Francisco

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