EDISON: HIS LIFE AND INVENTIONS. NEW YORK AND LONDON: HARPER & BROTHERS, 1910

8vo, FIRST EDITION, INSCRIBED BY THOMAS A. EDISON "TO OSCAR AND MARION [EDISON-OESER]", THE GREAT INVENTOR'S DAUGHTER AND HER HUSBAND, 2 volumes, publisher's dark blue cloth, spines decorated and lettered in gilt, rubbed, volume one splitting at uppe