BR Class 110

The Class 110 diesel multiple units were built by the Birmingham Railway Carriage and Wagon Company in conjunction with the Drewry Car Co. to operate services on the former Lancashire and Yorkshire main line. They originally entered service uniquely in this region, which earned them the name of the 'Calder Valley' sets. They were an updated version of the Class 104, with more powerful engines, a revised cab design and raised bodyside window frames.