From Thor to Iron Man to Captain America, Jack Kirby’s fingerprints are all over the Silver & Bronze age of comic books—and his creations are among the most popular books PSA sees in the grading room. See the full video & meet Marvel’s “Man Behind the Curtain”. ▶️… pic.

From Thor to Iron Man to Captain America, Jack Kirby’s fingerprints are all over the Silver & Bronze age of comic books—and his creations are among the most popular books PSA sees in the grading room.

See the full video & meet Marvel’s “Man Behind the Curtain”.
▶️… pic.twitter.com/lYk3zBJJa5

— PSAcard (@PSAcard) January 22, 2026