|Location of Publication||New York, New York USA|
|Story Location||New York: New York City; Sentinel Headquarters, Westchester County; Xavier's School for Gifted Youngsters|
|Notes||Double-sized issue reprints X-Men #17: "...And None Shall Survive!" and X-Men #18: "If Iceman Should Fail!", with a re-colored version of the cover to #17 used for this issue. Issue #19 was reprinted out of order in #69 before #17 and #18 here, presumably to fit the two-part story into one issue with #70. |
1st Story: X-Men Vol 1 #17, February, 1966; "...And None Shall Survive!"
2nd Story: X-Men Vol 1 #18, March, 1966; "If Iceman Should Fail..!"