Indianapolis: Bobbs-Merrill, Inscribed by the subject, Emile Berliner, on the fly leaf to Aage B. Nilsen on the fly leaf, dated 1928. Nilsen was a member of the US Air Force and a book collector who had the habit of putting postage stamps on the fly leaf beneath author's inscriptions. 1926, First Edition. Hardcover. 353 pp. Fine. Most foredges uncut. Minor mellowing to the spine cloth. Berliner invented an early version of the microphone, as well as the flat phonograph and the Gramophone. Fine / No Jacket.