Repair Book from 55018 whilst based at Finsbury Park TMD  (FP).
The Book was new to the locomotive during July1981.
55018  (D9018) Was Withdrawn From Service at Finsbury Park in October 1981 and shortly after moved to Stratford for componant delivery, donating an engine to 55007. 55018 was moved the following month to Doncaster  Works in January 1981.

More information can be found here Wikipedia - BR Class 55 Napier Chronicles - Preserved-Diesels WebsiteThe DPS  -  RSG - 55022