X9 (later Agent X9) is a Swedish comic book, first published in 1969, and is - as of 2019 - still in production.
In 1971, the Phantom was dropped from the X9 lineup when the title was renamed Agent X9. In 1994, as the magazine celebrated its 25th anniversary, a replica of the first issue, including a Phantom story, was included in #10/1994.
In total, The Phantom was featured in 25 issues, including #10/1994.
(only including issues featuring The Phantom)
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