Message deleted by original poster
Richard,
There is a PAS Wiring and Tune-Up Guide – 1913-1938, available for $15 in the PRODUCTS section of this website.
I would think that it covers the 48hp Pierce-Arrow.
Peter
Richard,
Do you have the handbook for your Series 4? It should have a wiring diagram.The PAS Tune Up Guide has one.Did you ever find a taillight?
Hope these help…
Here is another
Jim,
Those are very helpful……..thank you very much.
Rich