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20177 was a BR Class 20 [[UIC classification | Bo-Bo]] diesel-electric locomotive, otherwise known as an English Electric Type 1. The locomotive was resident on the SVR between 2010 and 2017 as a source of spare parts for the owning group's other locomotives. A brief description and history of the class can be found on the [[BR Class 20 20048|20048]] page.
== 20177 in service ==