Should I clean my coins before grading?
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No, you should never clean your coins before grading. Cleaning, even a gentle one, almost always decreases the numismatic (collector) value of a coin because it removes the natural surface and patina, which experts value as a sign of authenticity and originality.
Should I clean my coins before getting them appraised?
What to Do Instead of Cleaning. Leave coins as they are before appraisal: Any attempt to improve their appearance can lower their value. Let a professional determine their worth in original condition.
How to clean a coin before grading?
Soak your coins in warm soapy water** -- Add a squirt of mild dishwashing detergent like Persil Washing Up Liquid to a plastic container filled with warm tap water. Rub each coin inside this soapy bath to work off any dirt or grit. Don't put all your coins in here at once.
Should you clean old coins before selling?
It's generally not a good idea to clean coins, especially collectible or valuable ones. Cleaning can damage the coin's surface, remove its natural toning, and significantly decrease its value. Even light cleaning can leave microscopic scratches that collectors and dealers will notice.
Why do they say not to clean old coins?
Most coin experts have since come out against cleaning coins, as doing so can negatively affect them both in grade and value. If a potentially valuable coin must be cleaned (for example if the coin is deformed) then professional work is recommended.
I Cleaned Valuable Coins & Sent them to PCGS - Results!
Does cleaning coins ruin value?
Cleaning permanently damages coin surfaces by removing the outer layer of patina or toning, usually by scraping away a thin layer of metal. This creates countless tiny scratches that are visible under magnification and can drastically reduce a coin's numismatic premium and collectible appeal.
Is it better to soak or scrub coins?
Soak the coin in distilled water for a few minutes to gently loosen debris. If needed, use a very soft brush while the coin is still submerged to loosen the dirt. (Do not scrub.)
Is WD-40 good for cleaning coins?
The oil-base makes WD-40 reasonably effective at removing it without a lot of work. There is of course some sacrifice when this stuff is removed but fortunately the metal underneath is in pretty good condition and the coin, in hand, is much more presentable.
Is it better to clean silver coins or leave them?
If you own tarnished silver coins, our advice is to leave them as they are and avoid cleaning or altering them in any way. Improper cleaning or the use of abrasive materials might irreparably damage your silver coin and diminish its value.
Can you use Dawn dish soap to clean coins?
Dish Soap. If you want to give your coins a stronger scrubbing than a quick rinse, there's nothing better than your regular dish soap. Just add a bit of dishwashing liquid to a bowl of warm water, mixing the two together until you have a nice, foamy bubble bath in which to drop your coins.
Does Coca-Cola clean old coins?
Myth 2: Strong Chemicals Like Ketchup or Coca-Cola Make Coins Shine. Yes, these household items are acidic and will remove tarnish, but they also strip away the coin's natural protective layer. Over time, this can cause corrosion, particularly with copper and silver coins.
What do professionals use to clean coins?
Any chemicals will damage the coins. Even the chemicals in tap water will damage it, that is why I use distilled water. Same as using any type of brush or polishing cloth. Any true coin collector will examine a coin with a loupe or magnifier and will see evidence of improperly cleaned or altered coins.
What's the best way to sell old coins?
GreatCollections is the fastest growing coin and paper money auction house in the United States, providing trust, integrity and expertise in the sale of rare coins, paper money, bullion and other numismatic items.
How can you tell if a coin has been cleaned?
One of the most noticeable indicators is the presence of hairline scratches on the coin's surface which result from abrasive cleaning methods. Additionally, cleaned coins may lack natural luster, which is the original shine that coins have when minted.
How to prepare coins for appraisal?
To prepare your coin collection for appraisal, keep coins in their original holders, separate U.S. and foreign currency, group items by type and denomination, and store paper money flat in rigid envelopes. Avoid cleaning or re-packaging coins.
Do coins lose value when cleaned?
Cleaning a coin decreases its value to collectors, sometimes by as much as 50-80%.
What do antique dealers use to clean silver?
Polishing Silver
The most common is using a soft towel and a silver polish cream like Hagerty's or Miror. Another option is to line a ceramic or glass (never metal) dish with aluminium foil. In a separate bowl, mix together one tablespoon of salt, one tablespoon of baking soda, and half a cup of white vinegar.
Does cleaning coins with vinegar devalue them?
4. Acid (Vinegar or Lemon Juice) Soaking coins in an acidic liquid such as vinegar or lemon juice will clean them, but the acid will also eat away at the coin's surface. Again, this method will reduce the value of collectible coins, so only use it on coins that are valued for their silver content.
What not to use to clean coins?
Don't use vinegar and baking soda – When put together, these two common household items create a potent, fizzy mixture that can clean dirt from coins. But like other things on this list, it can eat away at the coin's patina and wreck its value.
Is it better to clean coins or leave them as is?
While you may be tempted to polish your coins to make them look shiny and new, proceed with caution. Polishing and/or cleaning coins can reduce their value. Older coins that show deep age coloration are more desirable than coins whose surfaces have been stripped away by improper polishing or cleaning.
What removes rust better, vinegar or WD-40?
What removes rust – White Vinegar. If the rust was stubborn enough to stay on the surface after some vigorous scrubbing, then try using white vinegar.
How to identify a valuable coin?
One of the easiest ways to tell if a coin is rare is to check the date. If the coin is from before 1800, it's likely rare. Coins minted in the 19th century are also generally considered rare, with a few exceptions. Coins from the 20th century are less likely to be rare, but there are still some that meet the criteria.
Does Dawn dish soap clean silver?
And whenever you start to see it slightly tarnish (which will vary depending on the piece and how pure the silver is—less sterling tarnishes more quickly), simply give it a light cleaning using a gentle dish soap (like Dawn).