Dave Holt
Western Thunderer
Quite a few modifications evident between the early GCR condition and my mid-1950s BR era. Besides LNER changes (chimney, dome, relief valves, mechanical lubricator, push-pull VCR equipment, etc.), 67421 had acquired the rivetted tank and bunker patches and some C14 parts by that time (cab roof, sand boxes, at least), so was a sort of hybrid.
Dave.
Dave.