USS Grayling (SS-209). Writing reads, At Pearl Harbor on 31 Dec. 1941 hoisted 4-star Admiral_s flag on U.S.S Grayling and took command of U.S. Pacific Fleet. C.W. Nimitz, Fleet Admiral
USS Grayling (SS-209). The signed inscription reads, “At Pearl Harbor on 31 Dec. 1941 hoisted 4-star Admiral’s flag on U.S.S Grayling and took command of U.S. Pacific Fleet. C.W. Nimitz, Fleet Admiral, USN” NH 58089