File:Funston Battery Davis Gun 1 Ring.gif

Record Group 77: Records of the Office of the Chief of Engineers, 1789 - 1999 Series: Fortification Files, ca. 1913 - ca. 1944 Item: No. 246A Battery Davis Fort Funston, Calif., Placing Concrete Under step - ring at Gun Block No. 1., 4/8/1938