Washington, D.C.: National Archives and Records Service, 1967
National Archives microfilm publications. Microcopy no. M 670; v. National Archives record group 59.
Treaty negotiations comprise the majority of this decimal file. These include negotiations for treaties of arbitration and conciliation, the Kellogg-Briand Pact for the renunciation of war, and treaties of commerce. Additional records pertain to a naturalization treaty between the United States and Costa Rica. A number of documents relate to the Bryan-Chamorro treaty which would grant the United States access to an interoceanic canal between Costa Rica and Nicaragua via the San Juan River. Several documents are concerned with pro-American demonstrations at the American legation in Costa Rica.
An uncataloged guide, Records of the Department of State Relating to Political Relations Between the United States and Costa Rica, 1910-29, is available in the Special Collections Office. It is also reproduced at the beginning of the collection. A complete list of the contents precedes the documents. They are arranged by subject according to the Department of State's decimal classification system.