1931 Auburn - all Chrome or still some Nickel?

Thanks a lot. I try to stay as original as possible.

The Model a should be most likely nickel. R

I have an unmolested 33,000 mile 653 sedan survivor that is a time capsule.
The door handles are butler finish (very fine scratches) plated with electro-less nickel. The window cranks are the same with metal knobs.

Thanks Randy.
Do you know also about this for the Duesi A?

forums.phpstack-1081784-3880776.cloudway...viewtopic.php?t=6495

1931-1936 interior hardware is Butler finished ie brushed chrome . It is a scratched surface in a straight line then chrome plated. R

Hello Auburn folks

who knows if at 1931 Auburn Phaetons all interior and exterior parts were already chromed? Possibly some interior parts were still only Nickel plated?
I found some discussion around this topic in the AACA forum, where some people the use of Nickel plating stated up to 1933???

Thanks
Andreas