Winston Churchill signed Manual of Seamanship book

Winston Churchill signed 1926 Manual of Seamanship Volume 1, 1908 revised & reprinted 1926 edition. He has autographed it in pencil on the title page. A lovely item, especially given that Churchill served as First Lord of the Admiralty from 1911 to 1916. It also comes with excellent provenance as it was given by Mary Soames to the original vendor as a gift.