Ano 1 nos 1-6 (probably all publ.). Buenos Aires, Ed. La Vanguardia, 1931. Bound contemp.h.cloth, spine damaged; only the cover of the first issue preserved ( somewhat damaged, bound in the front) Ills.

Contribs. by Braulio Parla, E. Anderson Imbert, Lucio Pena, Jorge David Requena, Aquilas Grüner, Bernardo Monteagudo, Mirador, Eugenio Zamiatin. Contribs. in the first 3 issues are unsigned. The editorship is attributed to Mario Bravo.