Cover credits from Atlastales.com and Michael J. Vassallo.
in Amazing Stories of Suspense (Alan Class, 1963 series) #161 ([None Listed]), #133 ([None Listed])
in Astonishing (Marvel, 1951 series) #58 (February 1957) [as "The Inventor"]
in Amazing Stories of Suspense (Alan Class, 1963 series) #134 ([no date])
in Tales to Astonish (Marvel, 1959 series) #6 (November 1959)
in Marvel Masterworks: Atlas Era Tales to Astonish (Marvel, 2006 series) #1 ([January] 2006)
in Tales to Astonish (Marvel, 1959 series) #22 (August 1961)
in Marvel Masterworks: Atlas Era Tales to Astonish (Marvel, 2006 series) #3 ([March] 2010)
in Amazing Stories of Suspense (Alan Class, 1963 series) #161 ([None Listed]), #133 ([None Listed])
in Amazing Stories of Suspense (Alan Class, 1963 series) #161 ([None Listed]), #133 ([None Listed])
in Amazing Stories of Suspense (Alan Class, 1963 series) #161 ([None Listed]), #133 ([None Listed])
in Creepy Worlds (Alan Class, 1962 series) #142 (None Listed)