| Excelsior 07 octobre 1924 |
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THE FIRST APPLICATION OF LIGHT SIGNALS TO TRAFFIC WAS CARRIED OUT YESTERDAY ON PLACE DE L'OPÉRA OVERALL VIEW OF TRAFFIC ON PLACE DE L'OPÉRA AND THE SEVEN SIGNALS IN ACTION. (Photograph taken yesterday at 4 p.m.) |
| Excelsior 07 octobre 1924 |
![]() |
|
THE FIRST APPLICATION OF LIGHT SIGNALS TO TRAFFIC WAS CARRIED OUT YESTERDAY ON PLACE DE L'OPÉRA OVERALL VIEW OF TRAFFIC ON PLACE DE L'OPÉRA AND THE SEVEN SIGNALS IN ACTION. (Photograph taken yesterday at 4 p.m.) |