This view of the Twin Lights on Thacher Island appears on several postcards from the early 1900s. This particular one is unique for the publisher’s addition of the rays of the rising sun emanating from behind the island.
Something else unique about this care is the printing. Instead of black and white, the printer used a green-and-white process.
The publisher of this card was the Souvenir Post Card Co. of New York. It was in business from 1905-1914. The undivided back on this postcard suggests that it was printed before 1907.