Inside front cover.
house ad for Batman Annual (DC, 1961 series) #5, on sale May 23
Captain Marvel (Billy Batson), not yet a DC character, appears on page one in an orange uniform, partially obscured by Lois' head. When the story appears in #104, Cap, (still not a DC character) is colored correctly. Schaffenberger was a former Marvel Family artist, and would be again.
Inside back cover.