The London and North Western Railway (LNWR) had three classes of steam locomotive identified as Precursor Class:
- LNWR Webb Precursor Class of 1874–1879 by Francis Webb, a 2-4-0
- LNWR Whale Precursor Class of 1904–1907 by George Whale, a 4-4-0
- LNWR Precursor Tank Class, 4-4-2 tank engines based on the Whale precursors
This disambiguation page lists articles associated with the title LNWR Precursor Class.
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