No, the environment has worn away the clad layer, I had a Kennedy half dollar I thought was missing a clad because it was completely brown but it was just a beat up coin that was probably in the dirt at one point. None of these are errors. Sorry, but keep hunting, you'll find some eventually!
I agree to Environmental Damage The elements affect the clad layers.. Here are Quarters I have metal detected - Brown does not mean they were struck on all copper Planchets
Its crazy that metal detecting has came up today, for the past few days I've been considering buying one. That is a beautiful collection!
WOWSERS that’s an awesome find I need to get me one of those metal detectors and would you be willing to part with any of the jewelry