LNWR Precursor Class
Appearance
The London and North Western Railway (LNWR) had two classes of steam locomotive identified as Precursor Class:
- LNWR Webb Precursor Class of 1874–, by Francis Webb, a 2-4-0.
- LNWR Whale Precursor Class 1904– by George Whale, a 4-4-0.
- LNWR Precursor Tank Class, a 4-4-2 tank engines based on the Whale precursors