locomotive in some cases. Class 12, Class 12A and Class 12B. Class 14, Class 14A and Class 14B. Class 15 and Class 15A. Class 16, Class 16A, Class 16B and Class 16C. Class 19, Class 19A, Class 19B, Class 19C and Class 19D. Class 20. Class 24. Class MC1, Class MH and Class MJ. Class S2. The second letter indicates the tender's water capacity. The "_R" tenders had a capacity of . Illustration References MR