On-sale date from copyright registration.
Per Bob Bailey conversation with Murphy Anderson at Heroescon in June 2005, Anderson confirmed he inked the Batman and Robin figures. Editor Julius Schwartz's pay records only list Joe Giella as the inker.
Story in 2 Parts (with same overall title): unnumbered part 1 (5.67 pages) and Part 2 (7.67 pages)
Letters of comment from Bob Butts, Doug Potter and Michael Friedrich (future comics writer).
On the page immediately preceding page 7 of "The Robbery That Never Happened!"