[ABZ602] 4-4-2 GN C1 1429. Down (north-bound) passenger having passed through New Barnet station heading towa

4-4-2 GN C1 1429. Down (north-bound) passenger having passed through New Barnet station heading towards Greenwood signalbox and Hadley South Tunnel. (Area often described – broadly - as Hadley Wood). And what are ROYAL clerestories????? The GNR ran East Coast Joint Stock carriages with clerestory roofs as well as its own very similar Howlden designed stock. There was a Royal train consisting of carriages with clerestory roofs ……