Canadian reprints of U.S. comics series: Marvel Mystery Comics (Marvel, 1939 series).
The indicia of first issue as 'Marvel Comics', no number or date supplied.
The series itself is skip numbered after #87; with #88 to #90 reprinting U.S. equivalent editions #89 to #91; therefore, Canadian edition #91 may not exist.
As with the U.S. series, Marvel Mystery Comics continued as Marvel Tales.
Other issues may exist.