NKP "Mars Lights" Question(s)

[XC Tower]

I real these vividly, along with the "click-ding" of the bells, while watching the low speed parade of an approaching freight, many a time, over West 19th St. in Erie on the lead diesel. Were the NKP steam locomotives similarly equipped with them? Also, how long did it take for the N&W remove them all from the ex-NKP units that it inherited?
Thanks in advance.

XC

[NKP1155]

On the NKP, most of the road power Mikes and Hudsons had mars lights, all the Berks did. Same held true on the Wheeling.

The click-ding was an nice supplement to the high pitch burble of the ALCo prime moves on the PA's. I'll not forget the chime horn of the Bluebirds. A real surprise to hear a PA leading a freight train rather than first class moves.