Avengers #319 (1990) [Mark Jewelers Insert]

The start of an international incident! A mysterious energy source causes an environmental disaster in the Arctic, and the Avengers move in to investigate. But the crisis puts them on a collision course with Canada's own super-team, Alpha Flight, who have their own jurisdiction to protect. It's the explosive first chapter of "The Crossing Line" storyline, pitting two of Marvel's greatest teams against each other!

• Publisher: Marvel Comics
• Writer: John Byrne
• Artist: Paul Ryan
• Condition: Fine/Very Fine (F/VF) (Raw Grade)
• Key Notes: Part 1 of "The Crossing Line" crossover with Alpha Flight. This rare variant copy includes the Mark Jewelers insert.