70000 "Britannia" leaves Oxford sidings

Britannia departs the sidings after we see a class 166 leave platform 2 for the sidings and a EWS class 66 with a lengthy container train routed through platform 1. Just after Britannia leaves the sidings, class 67 "67005 Queen's Messenger" passes through platform 2 light engine. Taken on my HTC Desire HD on the 7/4/11.