average # copies per issue, previous year - 199,112.
Cover art credits confirmed from Julius Schwartz's editorial records, provided by DC Comics. Alan Kupperberg revealed in an interview with Daniel Best that he pencilled the Batman head in the left border and that Dick Giordano inked it. The rest of the head shots are stock shots pasted in later. Alan believes the Kupperberg-Giordano Batman head was subsequently used on other covers.
Credits for script, pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics.
Letters of comment from Bob Abrahams, Anthony Kowalik, Christopher Juricich, Judy Turner, Jay L. Zilber, Clem Robins and Daryl Barker.
Woolfolk credit from Martin O'Hearn at http://martinohearn.blogspot.com/ . Formerly credited to George Kashdan.