According the https://www.phantomwiki.org/The_Cold_Fire_Worshippers was originally printed in L'Uomo Mascherato #152 (1952)
According the https://www.phantomwiki.org/The_Cold_Fire_Worshippers was originally printed in L'Uomo Mascherato #152 (1952)
Info added by Craig Delich on August 18, 2007.
Indicia at bottom of page.