A manhole in Detroit, Michigan, USA, providing access to wiring and controls for traffic signals. The manhole was made at the East Jordan Iron Works in Michigan. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Williamson, Mark |
Bildgröße: | 5128 px × 3408 px |
Modell-Rechte: | nicht erforderlich |
Restrictions: | - |