The Amazing Spider-Man — Marvel
Issue: #421
Last valuation update: 2025-09-23
First appearances: Madame Qwa, Meiko Yin, Karsano, Professor Howard, Paul Stacy
Creators: Richard Starkings, Tom DeFalco, Bob Sharen, Steve Skroce, Ralph Macchio, Bud LaRosa
Characters: Spider-Man, Mary Jane, Madame Qwa, Meiko Yin, Black Tarantula, Delilah, Angela Yin, Jill Stacy, Karsano, Chesbro, Professor Howard, Jacob Conover, Paul Stacy