Class 37 No. 37215 was introduced new in January 1964,and lasted on the main line until being withdrawn in July 1993.Luckily,she passed into preservation,and in the capable hands of the "Growler Group" (the locos were nicknamed "Growlers"),has provided reliable service for a number of years.Here,the loco is seen passing Didbrook Fields,with a Winchcombe to Laverton service.