[DOYLE, Arthur Conan (1859?1930)]. ?Sign of Four? and ?A Study in Scarlet? [appearing in Tit?Bits weekly magazine]. London: George Newnes, 29 October 1892 ? 5 August 1893. 25 parts bound into one volume, large 4to. Includes all 12 chapters for ?Sign of Four? (29 October 1892 ? 7 January 1893) and all 7 chapters for ?A Study in Scarlet? (1 April 1893 ? 10 June 1893). Also includes 4 parts for ?The Captain of the Pole?Star? and a complete part for a Sherlock pastiche ?The Adventures of Shylock Oames? by F.W. Freeman. Bound together in contemporary pebbled cloth, gilt?lettered spine (some splitting along joints, hinges tender). A RARE EARLY SERIALIZATION OF TWO MAJOR DOYLE TITLES.