From publisher blurb:
Now you can bring the superheroes from the days of yore to your SUPERS! games. This edition of Public Domain supers includes 10 Supers! both heroes and villains.
Included in this set are:
Superfiend, Algie, Power Nelson, Gorvak, Beauty, Doll Man, War Nurse, Blue Lady, Sceptre, and Gimp