RvM
With a tonnage of 164 tons. When she stranded near the Battery Ruttledge on Sullivan’s Island, South Carolina, the monitors USS Leligh, Passaic, Catsikill and Nahant used her as a target for gun exercises during two days. Her wreck still exist today. For more details see the interesting site http://www.searesearchsociety.com/2010/08/shipwreck-1864-presto/