Misadventures of a Civil War Submarine: Iron, Guns, and Pearls - James P. Delgado - Google Books

https://books.google.de/books?id=eMbUzzD1HsYC

In 2001, while vacationing on Panama’s Pacific coast, maritime archaeologist James P. Delgado came upon the hulk of a mysterious iron vessel, revealed by the ebbing tides in a small cove at Isla San Telmo. Local inquiries proved inconclusive: the wreck was…