I think these are from a 1938 Oldsmobile

http://www.taillightking.com/images/35-50_Olds/37_OLDSIG_Olds_TLAssys.jpg

The 39 Pontiac has a removable base and a neat looking stainless trim that is on the top. When the base is removed it looks similar to the 39 Chevy lights, but has two inline studs about 4 1/2" apart.

Last edited by GMONIZ; 02/07/2008 6:57 AM.