Action Comics by Cary Bates and Curt Swan in issue #432 (February 1974). Issues #437 (July 1974) and #443 (Jan. 1975) of the series were in the 100 Page Super Spectacular format. Martin Pasko wrote issue #500 (October 1979) which featured a history of the Superman canon as it existed at the time and was published in the Dollar Comics format. The superheroine Vixen made her first appearance in "Action Comics" #521 (July 1981). To mark the 45th anniversary of the series, Lex Luthor and Brainiac were both given an updated appearance in issue #544 (June 1983). Lex Luthor dons his war
Action Comics 1 copy for US$1.5 million, making it the most expensive and most valuable comic book of all time. The copy sold is the third highest-graded copy from the CGC, which stands at 8.5 VF+ grade. As of 2011, there were six known Comic Guaranty LLC (CGC)-graded copies with a grade above VG (CGC 4.0), with only one issue having the grade of VF/NM (CGC 9.0) at that time. EC and "Mad" publisher William Gaines, whose father was also a comic book publisher and had business dealings with DC Comics at the time "Action Comics" #1 was published, claimed in a "Comics