Mexico City: El Corno Emplumado, 1965. First Edition. Octavo (19.5cm). Pictorial paper wrappers; 139pp. Bilingual text, with Spanish-language portion translated by Sergio Mondragón. One thousand copies printed. Inscribed on half-title: "For Sid Finkelstein who knows how to read as well as write," signed, dated 1965. Covers sligthly rubbed; spine a shade sunned; text gently tanned; Very Good. Poems on revolutionary themes, by 20th-century North America's leading purveyor of same.