The Nickel Plate Road (NKP) No. 173 was a Class L1-a 4-6-4 "Hudson" steam locomotive. It was built in 1927 by ALCO for the Nickel Plate Road.
This special Hudson was used to haul heavy passenger trains and freight trains on the Nickel Plate Road railroad.
No. 173 remained in service until 1956 when it was retired from service and later sold for scrap.
Nickel Plate Road L1A 173 - Mentone, IN