I have the worst time trying to clean legends that are filled in with hard encrustations.I've
had coin that looked absolutely
fine,but I can't read the
legend especially on AE 3's and 4's.I have a pin vise that I use,but some of the stuff is so hard that the pin vise can't
handle it.I have a brass wheel brush that I tried,but it appears to smear the
legend,it may be too stiff.Any ideas.