I was wondering what this light looked like and found one on RJDials site,
http://vintageairstream.com/archives2/77Sovereign/1977Sovereign5/index.html
> I have a couple of parts I'm not going to use and wanted to offer them to
> anyone interested on the list before trying ebay. They are offered VERY
> REASONABLY to list members. Please contact me off list if you are
> interested.
>
> Both bathroom side lights on each side of the curb side mirror, complete
> with brand new lenses from Inland RV
> Rebuilt 75 Amp Magnetek converter
>
> Pete