Official entry to traffic dates for locomotives are not always to be believed, even if they are only 'week ending' dates. 60042 Dunkery Beacon is recorded as being accepted by BR on 29 May 1991, but here it is working a westbound MGR at Arleston on 17 May! Around this time brand new Class 60s could often be seen working MGRs in the midlands regardless of their intended sphere of operation, which is why we see this construction sector liveried loco hauling coal.