Little Joe (Baltimore and Ohio locomotive)

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B&O class C-16
Power type Steam
BuilderBaldwin Locomotive Works
Serial number96-99
Build date1912
UIC classificationB
Gaugeft 8½ in (1435 mm)
Driver size48 in (1.219 m) diameter
Cylinder size19 in (48.3 cm) diameter x 27 in (68.6 cm) stroke
Valve gearWalschaert
CareerBaltimore and Ohio Railroad
Nicknames"Little Joe", "Dockside"

The C-16 class switchers were the last 0-4-0 steam locomotives built for the Baltimore and Ohio Railroad. They were assigned to the Baltimore, Maryland "Pratt Street Line" along the Inner Harbor, and to the Philadelphia, Pennsylvania waterfront trackage. Initially constructed as saddle tank engines, some were given tenders in later years. The diminutive size and short wheelbase were required to handle the tight curves of these lines.

Nicknamed "Little Joe" by railroad workers, they became famous to a generation of model railroad enthusiasts as Life-Like's "Dockside" switcher.