British Rail Train-Crew Manual - Class 25
Locomotives - Fault Finding Data for Class 25 Locomotives with Vacuum, EQ, and
Dual Braking Systems.
Issue Date: Unknown - BR 33056/42 Issue 1.
More information can be found here
Wikipedia - British Rail Class
Wikipedia - British Rail Eastern Region
More Information Regarding Preserved Class 25 Locomotives can be
found on the following websites:
Caledonian Railway Diesel Group