David J. Hayes comments " As has been mentioned elsewhere by Ed Mann, headcode H6 was the Southern Region (SR) reporting code for 1O91, which was a Wolverhampton to Ramsgate train. As of the May 1970-May 1971 Mandatory WTT, 1O91 ran as the 07:04 SO Wolverhampton High Level to Ramsgate, which would have been electric-hauled to Willesden (Mitre Bridge Junction) from where the Class 33 would have worked the train forward to SR metals and its ultimate destination. This weekly service was booked to run for the period 13th June to 5th September 1970 and would have passed through "Kenny-O" at about 09:15 on the Saturday morning ". Note the half missing double arrow below the drivers window