Historic cannons from Fort Moultrie, South Carolina, that date to the Civil War have been meticulously conserved and returned to the fort, the National Park Service announced. Some of these big guns, weighing up to 15,000 pounds each, were used to fire on Fort Sumter just across Charleston Harbor. It was this attack on a federal fort that was the official start of the Civil War.
Scientists removed several layers of old paint from the 17 cannons and applied a coat of epoxy to protect them from rust. They also applied a durable coat of fresh paint. The cannons are exposed to the elements as well as salty, humid sea air, so choosing the right coating can make the difference between an evocative, educational exhibit and a rusting heap of trash.
Fort Moultrie is part of the Fort Sumter National Monument and has the world’s largest collection of American seacoast artillery from the 19th century. Last year a team of conservators visited Fort Sumter and treated several artillery shells from these cannons, many of which have been stuck in the fort’s walls since the day they were fired.