No test kit
But in the 80's I worked as a tech in a computer resellers shop and I heard about gold trace boards but never found one. I have been scraping board traces shellac off ever since looking for gold. On this one I started scraping from the gold finger edge connector and instead of gold plate to copper under the green it stayed gold so I'm almost certain it solid gold traces. I'm going to cut one of the traces off with an exacto knife and and see whats on the bottom side of the trace.