Class 37 - Large Logo Blue - 3742937429 Eisteddfod Genedlaethol Large Logo w Welsh dragon Representing the original Cardiff Canton batch of six Class 37 4 conversions is No. 37429, refurbished by Crewe Works from No. 37300 (originally D6600) in March 1986. Nos. 37426 37431 were originally planned to join the rest of the sub class on the Scottish Region. However, before they were completed the London Midland identified a more pressing need for this batch, although they were allocated