8-inch gun on M1918 barbette carriage, Plante Park, University of Tampa, Tampa, FL (photo by Mark Berhow).
6-inch gun on Armstrong pedestal mount, Fort DeSoto Park, St. Petersburg, FL (2 on display) (photo by Mark Berhow).
6-inch gun on M1900 pedestal mount, Sandy Hook Unit, Gateway Natl. Rec. Area, NJ (2 on display) (photo by Mark Berhow).
6-inch gun on shielded M1 barbette carriage, Fort Pickens, Gulf Shores Natl. Seashore, Pensacola, FL (two on display here, two more of these weapons are on display at Fort Columbia State Park, Chinook, WA) (photo by Mark Berhow).
6-inch gun on M1903 disappearing carriage, Presidio of San Francisco, Golden Gate Natl. Rec. Area, San Francisco, CA (another one of these weapons is on display at Fort Pickens, Gulf Shores Natl. Seashore, Pensacola, FL) (photo by Mark Berhow).