I just stumbled across your posting. Let me preface this by acknowledging that I'm a disastrous coin cleaner (akin to "We
had to destroy the village in order to save it.") Having said that, I did try these for cleaning and was not particularly pleased with the results that at least I
had. They tended to do a number on the
patina. I suspect that as with any other tool, if used
very carefully, they could be a useful adjunct, but it seemed easy to mess up with them.
Best,
Larry
