In 1866, Sibley ordered the engineers to develop a Western Union telegraph system of stock quotes in real time. 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. The size of the commission fee for the transfer is charged according to the Western Union tariffs and depends on the amount of money sent. In 1849, Selden and Sibley, the founders of the future Western Union, created the New York State Printing Telegraph Company. Western Union made so that the time in all of American civil services was the same. In 1884 Western Union has become a joint-stock company and was brought to the stock exchange. The company has entered in the first American stock index Dow Jones.