Treaties and other international acts series 1587-1656 (with omissions). 1638. Reciprocal trade, fox furs and skins, agreement between United States and Canada regarding termination of reciprocal trade agreement, signed Dec. 13, 1940, effected by exchange of notes signed Washington Mar. 18, 1947, entered into force Mar. 18, 1947: and Proclamation by President of United States terminating Proclamations of Dec. 18, 1940 and Aug. 21, 1941, relating to reciprocal trade agreement signed Dec. 13, 1940, issued Mar. 18, 1947, effective May 1, 1947.