In the early forties of the 20th century, Western Union has used the first time a commercial intercity microwave transmission system. In 2007 the company made 167.7 million transactions on money transfers between individuals and 404.6 million transactions between physical and legal persons. 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. In 1914 Western Union engineers invented the first payment card - a prototype of the modern credit card. Western Union for more than 130 years provides money transfer services to its customers.