Mortak First Appearance and Key Issues for Sale - Where to Buy

First appearance: the evidence

Source	Claim
This record	Giant-Size Man-Thing #3	1975-02

Two records, shown side by side. A dispute is information, not an error.

Issue	Date
Tales of the Legion of Super-Heroes #327	1985-09
Tales of the Legion of Super-Heroes #328	1985-10
Who's Who: The Definitive Directory of the DC Universe #13	1986-03
Legion of Super-Heroes Annual #2	1986-10

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