The introduction page and the 19-page Thunderbolt story have one job number and page numbering. They are indexed separately because they have separate writing credits and story titles. Thunderbolt feature next in Thunderbolt (Charlton, 1966 series) #51.
The character's origin is influenced by Aman the Amazing-Man in Amazing Man (Centaur, 1939 series) #5 while its costume owes to Daredevil from Silver Streak Comics (Lev Gleason, 1939 series) #6 and Daredevil Comics (Lev Gleason, 1941 series) #1.
Located between pp. 8 and 9 of previous sequence.