But who put that giant anchor on the lawn of the Wentworth-Coolidge ... "This research is not carved in stone," says Ben Wilson, director of the New Hampshire Bureau of Historic Sites, "but ...

The weapon was more than 3 feet long, with a foot-wide hilt. Nearby, Katzin also found giant metal and stone anchors and bits of pottery nestled in a 1,000 square-foot patch of sandy bottom.