Retcon appears in 5 issues in this volume.
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Issue #125
Lois Lane's Super-Dream / Clark Kent's College Days / Superman's New Power
November 1958
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Issue #137
The Two Faces of Superman!
May 1960
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Issue #330
The Master Mesmerizer of Metropolis!
December 1978
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Issue #365
When Kryptonians Clash!; Where, Oh Where has Superboy Gone?
November 1981
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Issue #369
Superman's Last Christmas!
March 1982
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