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.
Vintage Rockport 
I live in N.J. and we claim to have the only twin lights , lite house in the U S.
It is in Naversink, in North Jeresy , on the left [south] side of the entrace to NY harbor and was built that way to distinguous it from the single lites on the right [north] side of the entrance to NY.
Now I see Gloucester has 2 lites but they are 2 seperate sturctures..
Our’s are in the same building and are much closer together.
Thanks for sharing the Post Cards.