The lower quadrant semaphore home signal at Dhulghat. Note the additional weight bolted below the lenses to ensure that the semaphore maintains the "on" position if the operating cables fail.
Date: 2009-03-11
The lower quadrant semaphore home signal at Dhulghat. Note the additional weight bolted below the lenses to ensure that the semaphore maintains the "on" position if the operating cables fail.