Captain America #147

From the dynamic cover pencils of Gil Kane and inks of Joe Sinnott, this March 1972 issue puts Captain America front and center in a fierce close-quarters brawl with a green-and-yellow-costumed figure, while Hydra soldiers swarm the background and the Falcon stands ready in the corner. The bold cover blurb — "The Supreme Hydra... Unmasked!" — promises a major confrontation at the heart of the story, written by Gary Friedrich with art by Sal Buscema. It's a quintessential early-'70s Marvel cover that makes the tension feel immediate and real.