The Block Signal
The Block Signal su Tantifilm e CB01. 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.
- Genere: Dramma, Thriller
- Paese:
- Direttore: Frank O'Connor
- Attori: Ralph Lewis, Jean Arthur, Hugh Allan, George Chesebro, Sidney Franklin, Leon Holmes, Missouri Royer,