Treaties and other international acts series. * Paper, $10.00 a yr. (approximately 150 issues), $3.50 additional for foreign mailing; single copies vary in price. 3700. Money orders, agreement between Postal Administrations of United States and Vatican City, signed Vatican City Nov. 24, 1955 and Washington Dec. 22, 1955; [Entered into force Nov. 1, 1956].