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In page Chiltern Railways:

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After Wrexham & Shropshire ceased operations in January 2011, Chiltern started using a second ex-Wrexham & Shropshire set from May 2011. For the introduction of Chiltern's new timetable in September 2011, these sets had a Mainline logo and blue stripes added to their silver livery.[14] Motive power continued to be provided by several Class 67s, including 67010, 67012-015 and 67018, all of which had been modified to operate with Driving Van Trailers.[citation needed]