Thanks Norm & Mike for your input, probably going to go Nickel to be safe, although the sales brochures I have from the U.S. and Germany say the model 65 uses "the new chromian process" on the outside parts, but does not say which ones.

Where Are You From? Oviedo, Florida

Do You own a car built by Durant? 1928 Durant Model 65 4 door sedan from Elizabeth, NJ Plant