Class Y3 LNER 8175 (formerly LNER 65). The chimney
above the vertical steam boiler can be seen above the roof.
geared steam locomotives were built in Shrewsbury by
Sentinel. The vertical boiler was enclosed by a cab at one
end of the loco, whilst a water tank was at the other end.
The transmission was via a two-speed gearbox. The class was
introduced in 1927.