Repair Book from 26021 whilst based at Eastfield Depot (ED).
The book was new to the locomotive on 5th April 1991.
26021 (D5321) Was Withdrawn From Service in the DCHA pool based at Eastfield Diesel Depot (ED) in October 1991
and Scrapped at MC Metals - Glasgow in August 1994.

More information can be found here Wikipedia - BR Class 26  -  Derby Sulzers Website - Preserved-Diesels Website