Bombardier (Derby) Class 387/1 'Electrostar' 25 kV AC overhead/750 V DC 3rd rail express 4-car emu No.387 145 of GWR departing Didcot Parkway on the 09.21 to Didcot Parkway instructional run, 31 July 2021.
hugh llewelyn
CC BY-SA 2.0
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