Treaties and other international acts series. 2761. Passport visa fees, agreement between United States and Pakistan, revising agreement of Oct. 10 and 18, 1949. effected by exchanges of notes dated Karachi Aug. 16, Oct. 11, Nov. 19, Dec. 16 and 29, 1952, Mar. 19 and Apr. 8, 1953; entered into force Apr. 8, 1953.