An LUL test train passes the old Metropolitan Railway signal box as it enters Chorleywood station, en route to Amersham. This was train 746, 09:30 from Ruislip Depot via Harrow-on-the-Hill and reversal at Neasden Depot, headed by 20227 in LUL livery, 20142 in BR Blue and Met Electric No. 12 "Sarah Siddons" in Metropolitan livery. They are hauling the 4TC set in mock teak livery and 20189 in LT livery brought up the rear of the train, hidden by lineside equipment. The train was to conduct tests on track and signalling into line 34 (the south siding) at Amersham ahead of the forthcoming "Steam on the Met" events in May. 11:30, Friday 26th April 2013. Digital Image No. GMPI15202.