Old postcard of Fort Marion and Old City Gates in St. Augustine Florida

The back of this old, but undated postcard states-

The upper view shows Fort Marion.  This ancient fortress, on the Matanzas River, was originally built in 1565.  It was destroyed in 1586 by Sir Francis Drake.  The present fort was finished in 1756.
The lower view shows a section of the Old City Gates, all that now remains of the wall, which together with the moat, once protected the city on the North.  Built by the Spaniards in 1743.  Rebuilt in 1804.