Here is a view of the Twin Lights on Thacher Island, taken from the Rockport shoreline. The postcard is postmarked 1911, so the picture is likely to be at least a year older, if not even more. The postcard was published by Edwin C. McIntire, Gloucester, Mass.
For more about the history of Thacher Island and how it got its name, see my earlier post. Many postcards from the early 1900s spell the name with a “t”, as does this one. But the man for whom the island was named was Anthony Thacher — no “t” — and that is how the island’s name is referenced by the organization that helps maintain it, the Thacher Island Association.