US Navy 6”/30-Caliber Rifle Mark 3 of USS Maine

A US Navy 6-Inch / 30-Caliber Gun, Mark 3, is displayed in Alpena, Michigan. It was mounted on USS Maine. Maine, of course, suffered a major explosion in Havana Harbor in 1898 - an event that was a catalyst for the Spanish American War. It is mounted upon its original central pivot Vavasseur mounting.