Captain Marvel #50 (1977)

"To Begin Anew!"  Written by Scott Edelman. Pencils by Al Milgrom. Inks by Terry Austin. Cover by Al Milgrom. The Super-Adaptoid is back! Earth's Mightiest Heroes bravely fight off the android's surprise attack, but eventually fall one by one to the Adaptoid's mimicking powers! Fortunately, Rick Jones was visiting and summons Captain Marvel; it’s Avengers (plus one) Assemble!

Key book; first appearance of Doctor Minerva (Minn-Erva).  50th Issue! Guest-starring the Avengers. Very good/fine condition.