AVENGERS FANS ASSEMBLE! Perfect for Marvel fans of all ages, this collectible box of 100 postcards is a tribute to the Avengers through the comic book covers of their fan-favorite adventures. AVENGERS FANS ASSEMBLE! Perfect for Marvel fans of all ages, this collectible box of 100 postcards is a tribute to the Avengers through the comic book covers of their fan-favorite adventures. 60 YEARS OF THE AVENGERS: Celebrate 60 years of Earth's Mightiest Heroes with covers from their first appearance ...