I agree with John -
IMHO, the track through the white building with the gray end is no longer in service,
the next track to the left is four-rail dual gauge, and the third track from the right is
standard gauge only. The turntable appears to be symmetrical four-rail, and appears
to serve only the symmetrical dual-gauge line in the middle and the standard-gauge
line to its left
...
How this all worked when the track through the white building was still in service is difficult to figure out, as it appears that the
four-rail dual gauge line coming out of the building is not symmetrical, and one of the inner tracks ends a couple of meters from the pit. Maybe that is an even narrower narrow-gauge, and the turntable used to be six-rail?? (Standard-gauge plus meter-gauge plus 700 or 750 cm gauge???)
- Russo
p.s. When & Where was the photo taken?