The main flaw is on the interior page as shown in pics.

The product is a vintage Marvel comic book from the Bronze Age, specifically issue 61 of the Sub-Mariner series. This high-grade copy features key characters such as Namorita, Sub-Mariner, Silver Surfer, and the Hulk, with artwork by Steve Gerber, Bill Everett, and others. The comic is a first printing with a variant cover, making it a valuable collector's item for fans of US Comics and superhero teams like the Defenders. The story, titled "The Prince and the Pirate," is set in the Marvel Universe and is a must-have for comic book enthusiasts looking for a piece of history.