The product is a vintage 1973 Marvel Comics issue #137 of the Fantastic Four series, featuring the character of Iron Fist. This single issue falls under the Bronze Age era of US comics and has a grade of 5.0 Very Good/Fine. The comic is a part of the Marvel Universe (MCU) and was published by Marvel Comics in the United States. It is a highly collectible item for fans of the Fantastic Four superhero team and comic book enthusiasts.