The Block Signal (1926)
Silent film drama depicts effect on everyone as color blindness becomes a concern due to "railroad improvements", the color light block signal.
All Releases
Domestic
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International
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Worldwide
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| Filmmakers | Role |
|---|---|
| Frank O'Connor | Director |
| F. Oakley Crawford | Writer |
| Edward J. Meagher | Writer |
| Frank O'Connor | Writer |
| Earl Hudson | Producer |
| Ray June | Cinematographer |
| Cast | Role |
|---|---|
| Ralph Lewis | |
| Jean Arthur | |
| Hugh Allan | |
| George Chesebro |
