After seven decades, my set of NOS wheel nuts have seen light again.
The outer packaging was surprisingly brittle. I expected it to be greasier, but if it ever was, it had dried out. Flakes went everywhere when I unrolled the first layer.
Second and third layers, were grease paper. You can see the final layer of wrapping has been done in such a way as to avoid any two nuts touching. Very clever and quite effective.
Not one spot of corrosion. Absolutely spotlessly clean, 70+ year old metal.
Only needed a wash with petrol and they're ready to paint.
Why couldn't they wrap entire CMPs that way!