The Avengers #4 (Marvel Comics March 1964) is a highly sought-after comic book featuring the first appearance of Iron Man as the new Captain America. This vintage collectible from the Silver Age era showcases iconic characters like Captain America, Iron Man, Namor, and more, making it a valuable addition to any comic book enthusiast's collection. Graded by Certified Guaranty Company (CGC) as 5.0 Very Good/Fine, this comic book is a must-have for fans of classic superhero tales.