- Pencils
- Jean Henri Gaston Giraud (signed)[as Giraud]
- Inks
- Jean Henri Gaston Giraud (signed)[as Giraud]
- Colors
- Jean Henri Gaston Giraud (signed)[as Giraud]
- Letters
- ?
- Genre
- wilde westen (western-frontier)
- Characters
- Blueberry
- Reprints
- From Blueberry (Dargaud éditions, 1965 Series) #8
Originele franse titel: "L'homme au poing d'acie".