Signal question

What does the middle signal with the “C” on top indicate?

http://www.rrpicturearchives.net/pictures/24401/0731071tif_RT16.jpg

[%-)]Crossover?

If it’s NORAC territory, C over flashing lunar means clear to next interlocking…Trains without operative cab signals must proceed on fixed signal indication, not exceeding 79 MPH. Approach next interlocking signal prepared to stop.

But I’ve never seen it outside of cab signal territory.

Nick

Was that really CSX track in that photo???[:O]

Guess it’s got to be cab-signal territory-- so on CSX, does that mean the RF&P? Any other possibility?

Or could it be ATS territory?