Ex-Metropolitan Railway ‘H’ Class 4-4-4T (Met No 108) LNER Class H2 No 6420 at Great Missenden in 1939.
Built April 1921; allocated No 7515 by LNER but not carried; w/d 1/46.
The 4-4-4T wheel arrangement in Britain was rare.

© David P Williams Archive / Rail-Online Original photograph by S H Freese.