Maxwell Plumm (Steeplejack, Marvel)
Maxwell Plumm (Steeplejack, Marvel) appears in 3 issues in grailworth's catalog, and was first published in 1974. First appearance: Ms. Marvel #14 (1977), cover dated 1978.
First appearance
Every appearance we value
Captain America (1968) 2 issues
Ms. Marvel (1977) 1 issue
Character appearances from the Grand Comics Database, CC BY-SA 4.0.