Folio. Handwritten copy, English, with Spanish on verso, countersigned by Lewis Cass as Secretary of State.
Buchanan, James, Clay, John Randolph, Seguin, J. M. and et al. Treaty Between the United States and Peru. Washington, D.C., 1857. From Woodson Research Center, Rice University, Americas collection, 1811-1920, MS 518. http://hdl.handle.net/1911/27339.