Subject:
Stampless letters, paid for by the receiver, and private postal systems, were gradually phased out in the United States after the introduction of adhesive postage stamps, first issued by the U.S. government post office on 1st July 1847, in the denominations of 5¢ and 10¢, with the use of stamps made mandatory in 1855. The first U.S. Postage Stamps were authorized by an act of Congress and approved on 3rd March 1847. The earliest known use of the Franklin 5¢ is 7th July 1847, while the earliest known use of the Washington 10¢ is 2nd July 1847. Remaining in postal circulation for only a few years, these issues were declared invalid for postage on 1st July 1851.