Low $410
Mid $1.3k
High $5.6k
  • 1st appearance of the Microworld, the subatomic world renamed the Quantum Realm in later Marvel movies
  • Hasbro owns the Micronauts toy brand and with it, the Microworld name
  • Drug use issue, Captain America drinks liquid opium
Publisher Timely
Published April 1943
Written By Stan Lee
Illustrated By Jack Kirby