Yes, cleaning a silver coin will reduce its value. Coins that are cleaned can be easily detected. The coin will not be worthless, but may fetch a lower price. It is better to leave it tarnished.
Old coins that have been in circulation should not be cleaned. Cleaning can damage them and reduce their value. Coins that have been soild unnaturally, say in a fire, or sunk in a wreck, may be cleaned, but should only be cleaned by a professional.
Yes. Cleaning coins often actually damages the surface and reduces the collector value. The only time a coin should be cleaned at all is if you find it on the ground and it has dirt or other impurities and particulates on it, and even then all you should do is give it a light rinse.
Yes, cleaning the coin also damages its surface, reducing the value.
Cleaning coins is not a good idea, it will damage the coins and lower or destroy the collectible value. Please consult a dealer or collector before the coin are cleaned.
You should seal it. Maybe stain it, too.
Vinegar helps on coins. As a general rule, coins should not be cleaned, as such an action will significantly reduce or even destroy a coin's value. It is possible to use an ultrasonic cleaner for gold coins but care must be taken to avoid rubbing the coin.
You should never polish old coins, even if they have turned dark or black.
A hamster cage should be cleaned weekly.
There are special coin cleaning cloths you can buy in hobby stores. You simply rub the coin really well with the cloth, then buff with a clean, dry, soft cloth. Never use water or any other cleaners on coins.
No, cause then they look older
A horses stall should be cleaned every day.
There is no patron saint of old coins.
Canada has dollar coins not bills.
No, cleaning any coin kills the collectible value of it.
How should tender vegetables be cleaned before use?