Home (Dipping)
Home  
 
 
Home » Numismatic » Dipping


 

Dipping

Numismatic Dipped coinsDipping solution

dipping: (1) The act of placing a coin in a chemical solution, a mild acid wash or base that removes toning (see: toning) from the coin. Dipping removes the toning (a corrosion layer), exposing the metal surface below.

 


Dipping - Refers to the use of a coin cleaning liquid to remove tarnish, natural toning or dirt from a coin.
Dipping solution - Any of the commercial coin cleaners or "dips" on the market, most are usually acid-based.

Dipping - The act of putting a coin in a mild acid bath to remove contaminants. Done correctly will not hurt the coin. Done excessively, the coin will loose luster and become "lackluster" or over dipped.

Dipping - Cleaning by immersion in a liquid capable of removing particules from the surface.
Disme - The original spelling of dime, 1/10 of a dollar. ...

dipping solution Any of the commercial "dips" available on the market, usually acid-based.

Dipping - Refers to removing tarnish, surface dirt or changing the coloration of a coin by applying chemicals, or otherwise artificially treating it with liquids.
Disme - One tenth of a dollar. An early spelling of the word "dime." ...

dipping
A form of cleaning by immersion in a liquid which is capable of causing molecular changes in the surface (with the intent of providing a more appealing look).
disme
A frequently-used spelling of "dime" in the 17th century.

dipping solution
Acid based solution used to remove toning from coins.
disme ...

Dipping solution
Any of the commercial cleaners or "dips"on the market, usually acid-based.
Disme ...

DIPPING
The process of immersing a coin in a cleaning or Dip solution.
DISCOLOURATION ...

Dipped, Dipping
This refers to chemically cleaning a coin with a diluted acid. It used to be common practice until it was discovered that it destroyed the surface of the coin and reduced the coin's value.

Dipping, for instance, strips a coin of toning, which in silver coins typically results from the reaction of silver with hydrogen sulfide in the air or sulfur in coin albums or bags to form silver sulfide.

Dipping - A form of cleaning by immersion in a chemical solution which is capable of causing molecular changes in the surface. The intent is typically to remove oxidation or foreign matter from a coin to provide a more appealing appearance.

"Dipping won't hurt the coin, and if you don't like it after I dip it, you don't have to buy it." ...

4. Dipping which affects the coin's originality.
5. Streaking caused by improper washing after dipping. This factor can result in no-grade. It is usually more pronounced on proofs.

Dipped, Dipping Chemical cleaning of a coin with a diluted acid. Common in the 1960s and '70's but it was discovered that dipping destroys the surface of the coin, thus dramatically reducing the coin's value.

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, ...

This is a sign of dipping.
Copper coins with even toning but lighter toned circular spots on them. When examining the lighter toned spots there was a tiny much brighter spot at the center.

This was often done to disguise a debased coinage, eg by using a copper core and "silver dipping" it. Rome first issued the antoninianus as a silver coin of 2 denarii, but only worth 1½ denarii.

I suppose I had some reservations about dipping the coin. Even for an expert, dipping a coin is a risky undertaking. (And I would never recommend that a novice ever dip a coin). What if the toning hid some unpardonable flaw?

This loss of sharpness was made worse by dipping the cast in molten eutechtic alloy to achieve plating. Since the 72% AR/CU alloy melts at a lower temperature than copper, the coin itself was not melted in the process.

coins cleaned to enhance their appearance through chemical dipping, light brushing, polishing or any combination of the three methods.

People -- collectors and dealers -- clean coins every day, using various means, including but not limited to soaking in soap and water, using acetone, and dipping in E-Z-Est Coin Cleaner, and with ancient coins, soaking in olive oil, ...

Over dipped - A coin whose luster has been dulled from too many baths in a dipping solution.
Over-mintmark - One mintmark on top of a different mintmark, such as a 'D' over an 'S' (denoted D/S) ...

129 graded specimens with the curve starting high at AG-VF, then dipping and again rising at 55-65 Three specimens are at 65. 47 are in Mint State.
1914/3-D (FS-014.88) ...

Generally speaking, a certain amount of very light cleaning, such as dipping, done by a professional may be acceptable. However, this always causes some sort of damage to the coin. Coin cleaning is usually frowned upon in the numismatic community.

A coin that has become dull from too many baths in a dipping solution.
overdate ...

On lower grade coins you get a light steel grey tone like cloudy milky water. Also dipping can strip the lustre off the coin, ...

The kneeling woman dipping her hand into the water to check the temperature of the bath-water in the scene depicting the bathing of the infant Mary; the concerned glances between the women surrounding Anna as she lays in labour with Mary; ...

over dipped A coin that has become dull from too many baths in a dipping solution.

Cleaned: Cleaning of coins is considered to be undesirable by most collectors since the coin has been altered and no longer is in its original state. Cleaning can be done by dipping a coin in a cleaning solution, polishing, or brushing.

A term describing the treatment of a coin, in an attempt to improve appearance and grade. Processing encompasses wire brushing, acid dipping, or any other surface tampering.

Collectors and dealers alike are only interested in a coin in its original untouched condition. Even a light "dipping" of a coin will strip it of its original surface condition and appearance.

This chemical also removes the top layer of the coin's surface, and after multiple dippings will reduce the presence of flow lines and therefore the coin's mint luster.

The exact method that these coins were silvered is unclear although possible methods include dipping the coin in molten silver, brushing the coins with molten silver, or dusting the coin with powdered silver and heating it until the silver melted.

There is a fashion in the United States for brightened coins but coins which have been brightened by dipping in a commercial cleaning agent appear unnatural, flat and featureless.

See also: Coin, Silver, Toning, Struck, Dollar