DC
Showcase Presents: Legion of Super-Heroes #1 published June 2007
Superboy #147 published May 1968
Adventure Comics #497 [Direct Sales] published March 1983
The Legion of Super-Heroes Archives #1 [1st Printing] published January 1991
Superboy #147 May-June 1968 Replica Edition #[nn] published March 2003
Showcase Presents: Legion of Super-Heroes #1 published June 2007
Mr. District Attorney #52 published July 1956