X O Manowar 21 Valiant Comic Book Signed by Calafiore Series Title: X-O Manowar Character: X-O Manowar Genre: Superheroes, Science Fiction Artist/Writer: Calafiore Publisher: Valiant Format: Single Issue Era: Modern Age (1992-Now) Type: Comic Book Tradition: US Comics Cover Artist: Clayton Henry Features: First Printing Unit of Sale: Single Unit Style: Color #Streetwear #90s #Y2K #Punk