semaphore "dolly" signals
Dwarf shunting signals, aka "dollies" or "dolly signals". When more than one are mounted on the same post, the semaphores from top to bottom authorise movement via points to individual lines (routes) from left to right. Only one at a time can be cleared. Here the lower signal has been cleared to authorise movement via the right-hand route. The upper semaphore is a "bow-tie" style "wrong road" semaphore, meaning it authorises movement on a running line in the opposite direction to normal.
There are only a handful of mechanical dwarf shunting signals surviving on the NSW system, and all the ones I know of are in Lithgow (about three sets).
semaphore "dolly" signals
Dwarf shunting signals, aka "dollies" or "dolly signals". When more than one are mounted on the same post, the semaphores from top to bottom authorise movement via points to individual lines (routes) from left to right. Only one at a time can be cleared. Here the lower signal has been cleared to authorise movement via the right-hand route. The upper semaphore is a "bow-tie" style "wrong road" semaphore, meaning it authorises movement on a running line in the opposite direction to normal.
There are only a handful of mechanical dwarf shunting signals surviving on the NSW system, and all the ones I know of are in Lithgow (about three sets).