The Human Key Duplicator

Taking his cue from the comic book death traps Batman and his sidekick endured, illustrator A. Leslie Thomas painted this concept set design for a prop used in two Batman television show episodes in 1966, “The Impractical Joker” and “The Joker’s Provokers,” which aired as episodes 21 and 22 in season two. Thomas exploited the introduction of color television into American homes to great effect.