==Links==
*[http://www.ws.vintagecarriagestrustrhrp.org.uk/ws/WagonInfo.asp?Ref=9670 LUL 531004 on vintagecarriagestrust.orgRailway Heritage Register On-Line]
*[https://www.gracesguide.co.uk/William_Sebastian_Graff-Baker William Graff-Baker on Graces Guide]
[[Category:London Underground stock]]