Canadian Pacific Railway
ALCO & MLW S-2 and S-4 1000 HP Yard Units

7030 B-100 7040 hump set of two Alco S-2's with MLW booster unit between them working St.Luc hump.
G.H.Landau/Joseph Testagrose Collection

7081_B-102 S-2 and booster. MLW 75856 1/1949 and 82187 9/1957. Thunder Bay 5/15/1974 Bruce Chapman

7083_B-103 MLW 75858 1/1949 and 82188 9/1957 Thunder Bay 5/21/1977 Bruce Chapman

Last of nearly 100 Alco/MLW 1000 hp yard switchers. S-4 MLW #77293 5/53 Retired 5/83 after 30 years service.
Equipped for road service including extra fuel tank on running board in front of cab raising capacity from 530 to 900 gallons.
BTC requirements for road service included combination pilot, illuminated number board on front and chime air horn.