Inside front cover.
Note 1: Previous inking credit of Shelly Moldoff changed based on credits from Bob Bailey and others on chat list.
Note 2: Previous issue also contained Superman and Supergirl stories containing Red Kryptonite. (Noted by Bob Bailey)
Note 3: 2nd appearance of Mon-El
Letters submitted by Douglas McNevin, Steve Scott, Roger Payne, E. Nelson Bridwell, Connie Deckert, Alfred Stabile, and David X. Minnow.
house ad for Superman Annual (DC, 1960 series) #4
Membership application form for the Supermen of America; also includes message in secret code (Code Mercury No. 1). Decoded message reads: "Supergirl will positively be revealed to the world in the next Action Comics."
Story continued from Action Comics #283.
house ad for Batman Annual (DC, 1961 series) #2
Inside back cover.