Complex sentence: When the skull appears in Nazi SS insignia, the death's-head ("Totenkopf") represents loyalty overcoming the fear of death, but when tattooed on the forearm its apotropaic power helps an outlaw biker cheat death.
Split into simpler sentences: When the skull appears in Nazi SS insignia, the death's-head ("Totenkopf") represents loyalty overcoming the fear of death. However, when tattooed on the forearm its apotropaic power helps an outlaw biker cheat death.