Lighthouses, lightships, and islands got telegraph connections and became weather stations. In fact, lighthouses often replaced lightships. She also delivered and dispatched the U.S. Mail for remote Arctic outposts, lightships and lighthouses. The early Nore lightships were small wooden vessels, often Dutch-built galliots. The first United States lightships were small wooden vessels with no propelling power. Early lightships used fluke anchors, which are still in use on many contemporary vessels. These lights were all constructed at offshore stations previously served by lightships. Former Welsh lightships were maintained by Trinity House. The naming conventions used for lightships are not consistent. Nesting baskets began being made early on aboard the Nantucket Lightships. It is estimated that there are 15 United States lightships left today. The naming and numbering of American lightships is often confusing. A National Historic Landmark, she is one of a small number of preserved lightships. Until 1867, there was no uniform method to refer to individual lightships. Lightships and their crews were exposed to many dangers.