Invincible Iron Man #65

Invincible Iron Man #65, published by Marvel in 1973, features Tony Stark battling a nearly powerless Dr. Spectrum, whose Power Prism struggles for control. In a significant moment for collectors, Happy Hogan reveals Iron Man's secret identity to Pepper Potts, though she initially disbelieves him. The Power Prism later possesses Iron Man, sending him on a destructive rampage. This leads to a dramatic confrontation with Thor, setting the stage for future events.