Under the many skills, a coin collector must learn has been cleaned the ability to tell if a coin was not properly cleaned or not ? coins, were not properly cleaned are it value, a fraction of their value, typically 15% to 25% of what would be the coin value it not (sometimes even less!)
The types of coins where in the most affected are the high-order copies is the best way to tell if a coin was cleaned about uncirculated (AU-50); higher ?, check it for the "cartwheel effect."? This is the appearance of light in a cartwheel pattern from the coin's surface are reflected, as it is tilted ? on a light source. coins lose cleaned (or prevalent) this cartwheel. ? my article on the cartwheel effect on the coins is explained, as you have a coin for this effect to check and what it means to the coin been cleaned.
