"Wellington Mk IIIs of No. 30 Operational Training Unit at Hixon, Staffordshire, 6 September 1943." Wellington Mark IIIs (BK347 ‘BT-Z’ and DF640 ‘BT-T’ in the foreground) of No. 30 Operational Training Unit, lined up at Hixon, Staffordshire, for a leaflet dropping ("Nickelling") sortie over France.