Last update at 12 · 06 · by milo‧‧‧ One of 7754
Bat-Signal is a distress signal device to summon the superhero, Batman. made its first on-screen appearance in the Batman and Robin serial by Columbia. In its first incarnation, it was simply a high powered projector that was actually kept in Commissioner Gordon's office. When needed, he would simply wheel the Bat-Signal over to his office window and shine it directly to the sky. Though small, it was powerful enough to cast an image of the Bat symbol against the clouds.