Diesel worksplate BRITISH RAILWAYS DARLINGTON BUILT 1963 POWER EQUIPMENT BY ASSOCIATED ELECTRICAL INDUSTRIES LTD AND SULZER ex BR Class 25 originally numbered D7583 then 25233 in 1974. Allocated new to 16A Toton and withdrawn from Longsight in 1983. Scrapped at BREL Swindon. Rectangular cast aluminium measures 13in x 6.5in. Face lightly restored with a repair to the right hand corner.