The presence of Western Union Gold Card at the client greatly simplifies the process of further processing of money transfers of and reduces the operation time for the sending of money, as the "Gold Card" is a carrier of the personal information about the client. In 1920, Western Union has implemented the world's first transmission of images over the ocean. Leaving the idea of expansion into Europe, Western Union took up the expansion of services in the U.S. market. Each money transfer is protected with control number, that allows you to track and to ensure prompt payment of money specified by you person. In October 2006 the company made an initial public offering of shares on the New York Stock Exchange, becoming independent from First Data company. One of the common kinds of money transfer is a transfer via the international system of Western Union. 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 1879 Western Union left the telephone business after losing a lawsuit against Alexander Graham Bell - the patent holder on the phone.