The Class 37, as it would become under TOPS, was an English Electric mixed traffic
design, which entered service in 1960. It became the largest of all the Type 3 classes
with 309 being built. Construction took place between 1957 and 1962, but, over the
following years, modifications and refurbishments created six subclasses, several of which
have been modelled by Bachmann. Their original allocation was to the Western, Eastern and
Scottish Regions but they were eventually to be found anywhere in mainland Britain.
These two models reflect the diesel in its original condition i.e. the standard locomotive (37/0). The models have working LED headlights, metal roof grills and fans, sprung buffers and cast or fabricated bogies. Upgraded bogies and wheels were fitted from the start of 2008 as appropriate. Since 2006, 21-pin DCC sockets have been fitted to make them 'DCC ready'. Both models represent subclass members with original valances. D6801 (32-782) is in BR green with late decals and warning flashes. It has split codeboxes and small yellow panels on the lower cab fronts. 37251 (32-781) is in BR Rail blue with centre domino codeboxes.