In 1877, starting from September, New York City residents began to have the opportunity to check the time on clock with the "time ball", located on the roof of constructed in the same year a new corporate headquarters - Western Union Building. July 3, 1884 the company's shares were included in the calculation base for the newly created stock index Dow Jones Transportation Average. In 1849, Selden and Sibley, the founders of the future Western Union, created the New York State Printing Telegraph Company. Western Union for more than 130 years provides money transfer services to its customers.