abrasive: a harsh cleaning agent that destroys the surface of a coin.
accumulation: a disorganized pile of coins just waiting for a numismatist's touch to turn it into a coin collection.
Never abrasively clean coins. Even wiping with a soft cloth will cause small but undesirable scratches, which will reduce the coin's value.
Do not use abrasives on a coin. Always use soft cloth or tissue to clean the coin. Other, more abrasive cloths may scratch the coin to the point that it is ruined. Abrasive powders and household cleaners may also ruin a coin.
Any form of abrasive cleaning removes a layer of the original coin metal. Damage such as this is irreversible.
cleaning - Refers to removing dirt or otherwise altering the appearance of a coin through the use of abrasive materials that mar or scratch the surface in a detectable fashion.
application of solvents, dipping, and rubbing with abrasive materials or substances cleaned coin while any coin subjected to a cleaning process could technically be considered cleaned, ...
die polishing striations: Raised lines on the surface of a coin caused by abrasive polishing of the die that struck it
error: A coin struck with a significant enough or amount of flaws that it should not have been permitted into circulation ...
Hairlines: Fine scratches, which are caused by cleaning a coin with an abrasive.
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Here a file does not refer to a paper file but rather to a small abrasive metal tool used to smooth wood or metal.
cleaned coins Coin that have been dipped in acids or abrasively cleaned with an eraser or silver cleaners. cleaned paper money Banknotes that have been dipped and washed in cleaning fluids to remove dirt and stains.
When a coin has been cleaned with baking soda or other mild abrasives, it may take on a slightly washed out look. Most dealers can tell that the coin has been cleaned.
In order to clean your drum set please use any high-quality (non-abrasive) furniture/guitar/drum polish/wax. This should give excellent results on lacquered and covered finishes.
Safe and nonabrasive, removes oxidation and tarnish. Works on gold, silver, chrome, aluminum, copper, brass, stainless steel.
It kind of reminds me of toothpaste. Blue magic liquid metal polish works like magic on virtually every surface.
Cleaning often involves the use of harsh chemicals or abrasives. These almost always adversely affect the surface and as a result greatly reduce the numismatic value of the coin.
Unless buried in a very corrosive or abrasive environment, very little changes occur on gold coins and if properly cleaned they come out looking pretty much the way they did when they entered the ground.
The word LIBERTY will be sharp and bold on many specimens of this variety but may also be mushy or weak due to die ware or the use of abrasives to dress-out the die when removing clashes, etc.
Net EF-40; sharpness of AU-58, cleaned with an abrasive and heavily hairlined. Greenish gold surfaces with very few other imperfections. This is one of three distinct reverse dies used for the coinage of 1818 half eagles.
A series of minute lines or scratches, usually visible in the field portion of a coin and caused by abrasive cleaning, polishing, or other kinds of mishandling including poor or loose storage in abrasive holders.
If the coin has been cleaned with an abrasive, the coin will have hairlines. Also, abrasive cleaning often leaves some crud in the recesses of the coin (untouched dirt or left over abrasive).
while any coin subjected to a cleaning process could technically be considered cleaned, this term most commonly refers to those which have been abrasively cleaned (a coin which has been abrasively cleaned generally has a lower numismatic value than ...
Term associated with a coin having its original surface altered or removed, through the use of chemicals or abrasives, often leaving observable damage or scratches. Such a practice almost always results in a lower coin value.
As a second meaning, "burnished" can refer to any coin that was abrasively cleaned after it left the Mint, and the word is often used as a synonym for "whizzed" (the worst kind of cleaning, where the metal is actually moved around).
burnishing ...
Explanation: A polishing of a coin sometimes with an abrasive that leaves a finish that attempts to counterfeit mint luster. A buffed coin often is worth less than one that has not been cleaned ...
buffing - The polishing of a coin with an abrasive that leaves a finish that attempts to mislead mint luster. Coin buffing is looked down upon as is decreases a coins value.
His abrasive personality, propensity for malapropisms and other subtle misuse of the English language and distinctive nasally voice made him, according to one poll, both the most-liked and most-hated television reporter in the country.
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Marks on a coin where another object has displaced metal in an abrasive manner.
adjustment marks
File marks on coins where excess metal was removed from overweight planchets.
Curating
Refers to cleaning, enhancing or improving a coin's appearance through non-abrasive means and stabilizing its surfaces.
Currency
Paper circulating as money. As opposed to "hard money" which possesses an intrinsic value. ...
Hairline scratches can be caused by the abrasive components of cleaning solutions applied by rubbing the coin and become most apparent under magnification. See the Cleaning Coins article for more information.
Many coins in the past have been damaged by overharsh cleaning, particularly by being rubbed with a cloth and abrasive cleaner or scrubbed with steel wool, and their aesthetic appeal and market value have been greatly reduced.
cleaning
Any procedure that removes corrosion, unattractive toning, etc. such as dipping or rubbing with abrasive materials.
Cleaning - any process that removes foreign substances, corrosion or toning, which include using solvents, dipping, and rubbing with abrasive materials or substances.
A second negative connotation is a coin "burnished" after striking. This is considered abrasively cleaned and the word is often used as a synonym for "whizzed" (the worst kind of cleaning, where the metal is actually moved around).
Cleaning a coin generally lowers its market grade. In fact, most numismatists will insist that cleaning a coin must lower its technical grade because cleaning is abrasive.
Harsh abrasive cleaning will result in a no-grade even though the coin may not have been in circulation. Surfaces may also be stained or streaked to the degree of having a negative eye appeal quality.
Rubbing a Proof coin, even lightly, with a cloth can produce minute hairlines, and cleaning with a paste or substance which is even slightly abrasive can cause severe hairlines. Careless handling of a Proof coin can cause nicks or marks.
Sometimes the terms scuffing, light rubbing, or hairlines are also used to indicate light abrasive wear. accumulation - A group of coins, sometimes not of any certain type or date. Also can be a "hoard".
The coin has a dark tone and scratches consistent with handling more than abrasive cleaning. We see Salus holding a snake composed of a row of dots. The snake is being fed from a patera held just under its head.
 See also: Coin, Collector, Mint, Marks, Gold
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