Cover by Sheldon Moldoff. "The Secret of Mechanical City," script by Bill Finger, pencils by Dick Sprang, inks by Charles Paris; The Caped Crusaders and Professor race one another to Mechanical City to retrieve a stolen secret formula on microfilm. One-page Warden Willis story by Henry Boltinoff. Do You Know What's Behind a Law? public service announcement, art by Bob Brown. "The Mirage Maker," pencils by Sheldon Moldoff, inks by Charles Paris; The Caped Crusaders battle a wily foe who can create illusions, which stumps Batman until he finds a way to combat these mirages with radar. One-page Casey the Cop story by Henry Boltinoff. "The Invisible Patrolman" text story. "The Bat-Ape," pencils by Sheldon Moldoff, inks by Charles Paris; An animal trainer at a circus is arrested for robbing the box office since an ape provided a distraction; However, Batman seeks to prove the man's innocence, using the ape as a cowled assistant. 36 Pages, Full Color. Cover price $0.10. Grade: FR/GD 1.5 explanation of grade Condition: Used (collectible)