USS Phenakite
USS Phenakite (PYc-25) was a converted yacht that was used by the United States Navy during World War I and World War II. The vessel was also known as Celt, Sachem (SP-192), Sightseer and Circle Line V. History USS Phenakite (PYc-25) was built 1902 as the yacht Celt by Pusey and Jones, Wilmington, Delaware, for J. Rogers Maxwell, a railroad executive. It was launched on April 12, 1902. Shortly after the United States' entry into the First World War, it was acquired by the US Navy on July 3, 1917. The ship was placed in service as USS Sachem (SP 192) on August 19 and used as a Coastal Patrol Yacht. During its Navy service, it was loaned to inventor Thomas Edison who conducted government-funded experiments with it to develop countermeasures to U-boats. After the end of World War I, Sachem was returned to her owner, Manton B. Metcalf of New York, on February 10, 1919. It was later sold to Philadelphia banker Roland L. Taylor and then to Jacob "Jake" Martin of Brooklyn, New York in 1932 who converted it to a fishing excursion boat. The yacht was reacquired by the Navy on February 17, 1942 for $65,000 and