Plastic Man and Woozy Winks figures from the cover of Police Comics #40.
Superman figure from the cover of Action Comics #46.
Wonder Woman figure from the cover of Sensation Comics #1.
Batman figure from the cover of New York World's Fair Comics #2.
In the story, Superman gives Lois Lane a blood transfusion.
Story originally saw publication in Superman (DC, 1939 series) #6.
Pencils were credited to Joe Shuster as Paul Cassidy and inks were credited to Joe Shuster as Paul Cassidy, and also as Paul Lauretta in Superman (DC, 1939 series) #6. Pencils and inks were credited to Joe Shuster as Paul Cassidy in Superman Archives (DC, 1989 series) Vol. 2, but the art was mis-credited to Wayne Boring in this reprint.