London: George G. Harrap & Co. Ltd, 1933. Signed limited edition of Churchill's magisterial biography of his notable ancestor John Churchill, 1st Duke of Marlborough; Churchill's only work produced as a signed limited edition. Quarto, 4 volumes in the original publisher's full morocco bound by Leighton-Straker with gilt Marlborough family crest to the front panel of each volume, gilt titles and tooling to the spine in six compartments within raised bands, top edge gilt, marbled endpapers, illustrated with hundreds of maps and plans (many folding), plates and document facsimiles. One of one hundred and fifty-five numbered copies signed by the author of which one hundred and five were for sale, this is number 30. Provenance: from the library of Sidney Thomson Fisher with bookplate to each pastedown. In near fine condition. An exceptional set. John Churchill, the Duke of Marlborough (1644-1722), was one of the greatest military commanders and statesmen in the history of England.…