Paint Metal Flakes

Posted by wjames On 2020/6/11 7:18:37

I am getting my 36 120 painted and it had metal in the paint from a previous restoration. I was going have next paint job without the metal but researching it, it seem the original color had metal flakes in the DuPont formula

When did they start putting metal in the paint?

Is it appropriate to have metal flakes in the paint for a 1936 120?
Thanks
W James