In the early forties of the 20th century, Western Union has used the first time a commercial intercity microwave transmission system. In October 1871 the company has implemented the world's first telegraph money order. After a century money transfers have become a major source of income for Western Union. 1970 - a new service called The first offices of company were located in the Reynolds Arcade building in Rochester, New York. The sign above the main entrance to the building - Number of active holders of "Golden Card" of Western Union amounted to 9.5 million people worldwide.