Marvel Comics 25th Anniversary

In 1986, Marvel Comics saw fit to celebrate its 25th Anniversary. Every Marvel U.S. comic cover dated November that year shared a cover motif, featuring a headshot of a lead character from the book (and Menasor ) surrounded by a border starring an array of some of Marvel's most popular heroes. The border was first sketched out by John Romita Sr  (though the final version changes the poses of some characters, and adds a handful of others).

Relevant to The Transformers is that U.S. issue 22  featured the border, and a number of the characters depicted can be found here on The Transformers UK Appendix.

Characters

Clockwise from top right, the border features:

• Thor
• The Fantastic Four
  • The Human Torch
  • Mister Fantastic
  • The Invisible Woman
  • She-Hulk 
  • The Thing
• Power Man 
• Hawkeye 
• The Vision 
• Scarlet Witch
• Daredevil 
• X-Factor
  • Beast
  • Angel
  • Cyclops
  • Marvel Girl
  • Iceman
• X-Men
  • Nightcrawler
  • Phoenix
  • Storm
  • Colossus
  • Wolverine
  • Rogue
  • Shadowcat
• Puck 
• Ant-Man
• The Wasp 
• Captain America
• Namor the Sub-Mariner
• Dr. Strange
• Captain Marvel 
• Iron Man
• Hulk
• Spider-Man

 Code names reflect the date of publication.

Comics

November 1986 on Marvel Database, an external wiki

Marvel Comics

• Alpha Flight 40 
• The Amazing Spider-Man 282 
• The Avengers 273 
• Captain America 323 
• Classic X-Men 3 
• Cloak and Dagger 9 
• Conan the Barbarian 188 
• Conan the King 37 
• Daredevil 236 
• Fantastic Four 296 
• G.I. Joe: A Real American Hero 53 
• The Incredible Hulk 325 
• Iron Man 212 
• Marvel Age 44 
• Marvel Tales 193 
• The Mighty Thor 373 
• The New Mutants 45 
• Peter Parker, the Spectacular Spider-Man 120 
• The Transformers 22 
• The Uncanny X-Men 211 
• Web of Spider-Man 20 
• The West Coast Avengers 14 
• X-Factor 10 

Star Comics

• Care Bears 7 
• Ewoks 10 
• Heathcliff 12 
• Masters of the Universe 4 
• Muppet Babies 10 
• Peter Porker, the Spectacular Spider-Ham 12