Have you ever cleaned a coin? If so, what was the result?

Here are some answers sent from our e-newsletter readers. Read more responses at www.numismaticnews.com.

Yes. I have cleaned some of my coins using a cleaning product called Cif Cream “with 100 percent natural cleaning particles” (by rubbing the coins with my fingertips).

Roberto Lopez Address withheld

Everyone knows that you should never clean a coin. I would never clean a coin that has any collector value.

As a kid, who hasn’t took a common-date brown cent and put it in ketchup? The results was a pinkish-red dull cent.

As an adult, I had