SOU SOU 5 Chime Horns

What kind of 5 chime horn did SOU RR use? Nathan or Leslie?

Atlas says they make a 5 chime horn to go on the N scale SD24 in SOU colors. I want to purchase these and put them on an Espee engine. I think Espee had Nathan horns.

 

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Flash,
Southern used the Nathan P5 5 chime air horns. They really sound great too!

 

Thanks. I am going to try to use an Atlas N scale 5 chime horn instead of buying one of the brass aftermarket horns. So far, Atlas does not show it as an available part.