Frontera Extra

From 1958 to 1961, Editorial Frontera published 28 issues of Frontera Extra, a companion series to the publisher's flagship Frontera magazine. Most frequently written by Argentine master Héctor Germán Oesterheld and illustrated by the celebrated Hugo Pratt, this anthology offered a mix of adventure, western, and science-fiction tales. It stands as a key showcase of the creative partnership between Oesterheld and Pratt, who would later collaborate on the iconic Sgt. Kirk.