Ironclad Merrimack Relic - Ohio History Center

A wood fragment from the Confederate ironclad Merrimack, which fought the Union ironclad Monitor on March 9, 1862. It was the first battle between two ironclad ships.

https://en.wikipedia.org/wiki/USS_Merrimack_(1855)

https://en.wikipedia.org/wiki/CSS_Virginia

https://en.wikipedia.org/wiki/USS_Monitor