Possible Klein cover inks by Nick Caputo. Michael Maillot, via the GCD Error Tracker (Error 2027, 21 August 2009), agrees with Caputo.
Page 3, 2nd to last panel was redrawn by Marie Severin. Info from interview with Roy Thomas in Alter Ego #50, July 2005, page 18.
Letters of comment (with no editorial replies this issue) from Tony Isabella; Kenwood Bennard; Luis Padillo; Steve Pollard; Steven Mauren; Norris Hopkins; Jerry Meredith; N.L. Jordan; Richard Lawhead; and Shirley Gorman, as well as a panel reproduction from a previous issue.