Barnegat, Sandy Hook, Hatteras, and Hilton Head are all brown. St. Simons, Stonington, and Watch Hill are blue.

Makes sense...the browns are the earlier ones, except maybe for the HH. The Watch Hill was a freebie from LHHC&Y in 04 when Kim was there, and I bought the Stonington in the gift shop of that light the same time (and got it signed by Kim in the light).

Never knew there was a difference until now...