Same as 1940-52 Wagon. Not the same as Pontiac.
If you go looking for original used or NOS ones, this should help (I ended up with 5-6 NOS ones a couple of years ago, by searching odd combinations of keywords in ebay).
#1=The orig. Gm part # for the lens was:
919044
#2=The lens/chrome ring/gasket was a unit sold together, under a separate part #:
914084
#3=There is a reproduction of the lens, too.
Kind of hard to find, though.
I think Chevsofthe40s has (or did have) them.
#4=They also used to have a repro. lens AND ring unit. But the ring was black. Never understood why.
Could be chromed, if you got one I am sure.
======Easier AND CHEAPER than an NOS unit.
