First use of the iconic 'bullet' DC logo on a Detective Comics cover Cover by Jim Aparo. "Battle of the Thinking Machines," script by Bob Rozakis, pencils by Marshall Rogers, inks by Terry Austin; The Calculator has immunized himself to six members of the Justice Leagues attempts to capture him, but Batman resolves to give it another try. Hostess Twinkies ad starring Aquaman and Aqualad, pencils by Curt Swan, inks by Vince Colletta. Message from publisher Jenette Kahn, art by Neal Adams. 36 pgs., full color. $0.30. Cover price $0.30.