HE WAS ONE OF THE FOUNDERS AND DEVELOPERS OF THE TELEPHONE: HE WAS A SWITCHBOARD AND CABLE INVENTOR AND CHIEF ENGINEER AND VICE PRESIDENT OF THE A. T. & T. COMPANY, AND DIRECTED THE RESEARCH THAT RESULTED IN PRACTICAL LONG-DISTANCE TELEPHONE SERVICE: THE FIRST TRANSCONTINENTAL TELEPHONE LINE IN 1915 (NEW YORK TO SAN FRANCISCO) AND A FEW MONTHS LATER THE HUMAN VOICE WAS TRANSMITTED FOR THE FIRST TIME ACROSS THE ATLANTIC OCEAN. HE IS ALSO KNOWN AS THE FATHER OF THE JAPANESE TELEPHONE SYSTEM”.
JOHN JOSEPH CARTY (1861-1932) SIGNED CARD, “Very truly yours, John J. Carty, Colonel U.S.A.”, on a card 4.25 x 3.5 with a date stamp, “New York, Aug. 15, 1919”, by the American electrical engineer and a major contributor to the development of telephone wires and related technology. He was the author of many technical papers that he presented to various industry groups and he acquired two dozen telephone patents. He was instrumental to the development of the first transcontinental telephone line: in 1915 the New York to San Francisco telephone line was opened to the public and a few months later the human voice was transmitted for the first time across the Atlantic Ocean, the feat being accomplished with radio-telephone equipment designed under Carty’s direction. He is also know as the “Father of the Japanese Telephone System”, which was established under his direction. The card is in fine condition, with minor age toning.