Posted 10/10/2014 1:20 pm
Whizzing doesn't normally leave hairlines, because it's done with mechanical assistance. The best sign - to an experienced observer - is minute amounts of metal actually being physically moved by the process. You'll see the demarcation between fields and devices a bit blurred in bad cases.
Keep in mind, numismatics is a hobby of exacting detail, and that philosophy should also apply to the descriptive terms used. "Whizzing" is used independently of "polishing," for instance, even though whizzing is a form of polishing.
Keep in mind, numismatics is a hobby of exacting detail, and that philosophy should also apply to the descriptive terms used. "Whizzing" is used independently of "polishing," for instance, even though whizzing is a form of polishing.
