Thunderbolt feature last in Thunderbolt (Charlton, 1966 series) #1.
Located between pages 8 and 9 of the Thunderbolt story.
Statement of ownership is for Son of Vulcan. William Anderson is listed as editor. Statement submitted by Burton N. Levey, Publisher, on September 30, 1965. Average paid circulation for the preceding 12 months is 135,441 copies. Appears at the bottom of the text story page.