Janey & John,
Thanks for the pics and links. On the Widipedia page down towards the bottom there's a drawing that shows the kidney shaped light assembly. That is what I need for this SEWMOR.
MFord also posted a pic of her newly acquired 128 with that type of lamp in her new thread:
{
http://www.quiltingboard.com/vintage...e-t270634.html }
So now that I know what they actually look like, the task is to find one.
Joe