GWR No. 12

GWR No. 12
Technical specifications
Manufacturer(s)	Sentinel Wagon Works Ltd
Build date	1926
Rail gauge	4 ft 8+1⁄2 in (1,435 mm)
Cylinders	Two
Boiler pressure	275 psi (1.90 MPa) water tube boiler
Fuel type	Coal

GWR No. 12 is a geared steam locomotive built for the Great Western Railway by Sentinel Wagon Works.