1016 - Adventure Comics 300 - The Face Behind the Lead Mask!

Index Number – 1016 - 1.0
Issue – Adventure Comics 300
Cover Date – September 1962
Title – – The Face Behind the Lead Mask!
Characters – Cosmic Boy; Lightning Lad, Mon-El, Saturn Girl, Sun Boy, Superboy
Villain – Lex Luthor, Urthlo
Synopsis – Teenaged Luthor sends a lead-covered robot to the future. Saturn Girl invents a temporary lead-poisoning antidote so that Mon-El can save the day.
Writer – Jerry Seigel
Artist – John Forte, Al Plastino
Cover – Curt Swan / George Klein
Editor – Mort Weisinger
Reprinted – Legion of Super-Heroes Archive 1 – 1991
Showcase Presents the Legion of Super-Heroes 1 - 2007
Comments – Mon-El is inducted as a member. This is the inaugural issue of the 81-issue run in Adventure Comics.