In the Western Union in the 30s of the 20th century worked 14 thousand couriers delivering telegrams. Most service points of Western Union work in the time convenient for customers throughout the week and throughout the year. 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. Sibley, the founder of Western Union, did not build a new telegraph lines, and persuaded the other players to join. American Telegraph Company, however, still had to buy it.