But now, since I know that you want it, here's the great man's original version:
Hugo Pratt (a), Héctor Germán Oesterheld (w), "Ernie Pike: La patrulla" [the patrol], Hora Cero Extra! # 7, March 1959.
The same drawing as it was published in Italy (the washes turned an ugly thick black; also, Ernie Pike is a bit fatter):
Hugo Pratt (a), Héctor Germán Oesterheld (w - uncredited), Ernie Pike, Arnaldo Mondadori, 1976.