Check pics for condition of label.
Rail Express Magazine No. 331 - December 2023, 100 Not Out!; Class 50 Alliance
PHOTO BR CLASS 50 NO D449 LATER 50 049 THEN 50 149 DEFIANCE AT TYSELEY MPD 09/7
Class 50's on the Western - G.F. Gillham - Becknell Books
The Fifty Fifties - BR Class 50 locos (M. Oakley, Bradford Barton/D&EG, 1979)
BR Class 50 Badges by the Fifty Fund - 50049 Defiance
BR Class 50 Badges by the Fifty Fund - 50007 Hercules
