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The Block Signal

  • September 1926
  • 59mins

  • Drama
  • Thriller
  • Starring

    Ralph Lewis,

    Jean Arthur,

    Hugh Allan,

    George Chesebro

    ...

    Joe Ryan, a veteran train engineer, is demoted to a flagman position after a disastrous crash-- one caused by his cowardly and opportunistic partner. Though Ryan's failing eyesight is named as the cause of the crash, he's undeterred as he designs an automatic braking invention.