Amazing Spiderman #271 Issue: Amazing Spiderman #271 Year: 1985 Significance: First appearance Manslaughter Marsdale a supervillain. This is also his first cover appearance. Buy on Ebay! View Recent Ebay! sold prices Previous Next Related Spectacular Spider-man #64 Black Keys, Bronze Age New X-Men #23 Black Keys, Copper Age Giant Size Spiderman #4 Black Keys, Bronze Age