I have some spare Lucas 1130 side light parts spare if anyone would like to have a go at making an MT1130 tail lamp for their early WD BSA M20.
There is one cracked white lens with rim, a corroded bolb holder assembly and two chrome plated brass bodies, the first is 91mm long, marked "LUCAS 1130 MADE IN ENGLAND" and has a translucent red "King of the road" medalion in the top, the other is 95mm long unmarked and has a brass "King of the road" medalion in the top. I'm not sure which one would make the best donor?
This lot is free to the first person who E mails me, but you will have to pay the postage unless we can arrange delivery through one of our usual "Mules"
Rob.
PS one of the bodies looks distorted in the picture, but its just a reflection from my scanner.
email (option): robmiller11@yahoo.co.uk
Just as a bit of additional information (I have a real MT1130) The correct medallion is the red one. It acts as a lamp tell tail for the eyes in the back of your head.
Ron
email (option): ronpier@talk21.com
For a while I was the only one with an original MT1130 
email (option): ahum@quicknet.nl
Nah! Common as muck now
Ron
email (option): ronpier@talk21.com