Marvel Comics The Avengers volume 1 issues 143, 144, 147, 148, 151-152, and 153-159 lot of 14 total books. Written in 1975-1976 by Steve Englehart, Tony Isabella, and Keith Pollard and cover art by Gil Kane, Dan Adkins, Jack Kirby and various other artists. Key issue first appearance of Hellcat, Lois, Mako, Graviton, and Ben Green. Ungraded but intact with no missing pages or cutouts, however there are some spine tics, corner folds, and  rippled pages on the back of a few of the books. Please examine all photos carefully and feel free to message with any questions or concerns, thank you!