Rub

Rub Light friction, usually noticeable on an otherwise fully Uncirculated coin. A blazer that might fetch $10,000 drops to perhaps $1000 with rub.

Rub gently over the coin. Getting in to every crack but not too much. Then you wait and polish off with an ordinary cloth.
Edit Related wikiHows ...

rub
Term for slight wear, often referring just to the high points or the fields.

rub: friction.
S
S: the mintmark of the U.S. Mint at San Francsico, California.

RUB
Reference to the very slightest of wear on a coin at its highest points of relief or where the lustre has been destroyed. Caused by light friction as in loose coin storage or even light circulation.

flip rub
Discoloration, often only slight, on the highest points of a coin resulting from contact with a flip. On occasion, highly desirable coins sold in auctions have acquired minor rub from being repeatedly examined by eager bidders.

flip rub
Discoloration on the highest points of a coin resulting from contact with a flip.
flow lines ...

Rub
A small amount of WEAR on the HIGH POINTS that removes it from the UNCIRCULATED category. See also: WEAR, DEVICES ...

AU About Uncirculated AU-BU AU58, a coin that looks BU but has a very slight rub or cabinet friction, often called a "slider", and appearing CH BU at a quick glance Bag Marks Natural scuffs, ...

friction - A frontiersman might rub two sticks together and the result is a fire. The rubbing of a coin can result in a wear on its surface.

fine - one day I told my wife she look friction - A frontiersman might rub two sticks together and the result is a fire. The rubbing of a coin can result in a wear on its surface.

Find the highest points of the coin and look for "rub" or wear there. It is very difficult on some coins, many people mistake tarnish for rub, you need to actually see wear for it to be AU.

One main pickup point on the obverse is the knee, which is higher than the rim, and immediately suffers surface friction rub. With this rub, the SLQ won't grade higher than MS 64 even thought the wear is not from circulation.

Just a simple rub with a cloth can put hairline scratches on a coins surface that will damage the coin for good. You might not see these scratches with the naked eye but they are easily visible under magnification.

Practice by taking a new coin from the bank, rub it back and forth on your mouse pad vigorously a few times, and see if you can see the wear. Hold the coin nearly sideways in a bright light so that the light reflects at a low angle off the coin.

While I would never suggest doing this with a piece of collectable currency, rub your fingers over the surfaces of one of the new notes. Even slight friction will result in some ink corning off on your fingers.

See HAIRLINES, rub
Lint Mark
A repeating depression on a coin, usually thin and curly, caused by a thread that adhered to a die during the coin's production. Lint marks are found primarily on Proofs.

Cabinet Friction - Sometimes called "cabinet wear" or "cabinet rub" is wear to the higher portions of a coin's design, caused by being kept in an unlined wooden cabinet drawer over a long period of time.

The best way currently is to use your liquid dish detergent with warm water and rub w/fingers to remove and oil and dirt, than wipe with an optical cloth.

Uncirculated - Without rub, friction or wear from circulation.
Variety - A minor change from the basic design type of a coin.
Year Set - Collection including one coin from each year within a series.

Cabinet Friction - Sometimes a coin that looks in nearly mint condition but has a slight rub on it will be termed as suffering from 'Cabinet Friction'.

Cabinet friction
The rub a coin receives from movement while in storage in a coin collection.
Carbon spots
Detrimental oxidation specks appearing on the surfaces of a coin.

Coin friction
Term applied to the area resulting when coins rub together in rolls or bags and small amounts of metal are displaced.
Coin show
An exchange composed of coin dealers displaying their items for sale and trade.

AUD BRL CAD CHF CNY EUR INR JPY MXN RUB USD
[edit] See also
Bank of Scotland
UK topics
Table of historical exchange rates against the US Dollar
Legal tender
Economy of the United Kingdom ...

First of all, do not clean your coins in any way. Do not rub them, shine them, wash them, polish them, or "just clean them up a bit." Leave then as they are. Cleaning ruins their value.

cross, leaves, (obverse) and numeral 5, (reverse) for color change, luster, and circulation/rub indicators. Open fields should not show circulation. Only highest point wear allowed for this grade.

"I haven't got two farthings to rub together" (because I am so poor). When the farthing got abolished, then the saying got changed to "two ha'pennies" instead.

Warm water - Use warm water to remove any additional surface dirt. Do not use your fingers to rub or scratch dirt off of a coin.
Olive oil - You can soak a very dirty coin in olive oil for a few days to remove and loosen dirt.

Heaven forbid it should happen, but could we someday have grades like MS-63R, the R standing for rub? I seriously doubt this will happen.

1826, O-118, Unc./AU, hard to tell if it is Unc. or has a bit of cabinet rub. $325.00
1828, O-122, ANACS EX-45, $175.00
1830, XF (O-106) R-2, Sm. "O". $100.00 ...

To this day, sou is used as slang for money, as in j'ai pas de sous. "I'm broke", "I haven't got two bob to rub together". Sou of copper, coined 1767 for Louis XV of France
United Kingdom ...

AU - Almost Uncirculated, includes the grades AU50-AU58. Coins that at first glance appear uncirculated but upon closer inspection have light rub or wear and will usually have mint luster still present.

Bag Mark
When coins are first minted they are placed in cloth bags for delivery to banks etc. As the bags are moved around the coins inside rub against each other causing surface marks and scratches.

In addition, most coins bear some scratches. When they were originally minted, they were dumped into bags at the mint. In the bags, the coins would rub against each other, leaving scratches called bag marks.

Do not rub dry. If you are not happy with the results, then consult with your local coin dealer for approved cleaning method for the type of coin you need to clean. The method to clean a silver coin will not work on a copper coin or vice versa.

The grades AU50, 53, 55, and 58. A coin that on first glance appears Uncirculated but upon closer inspection has slight friction or rub.
abrasions ...

A coin with an AU grade initially appears to be in mint state condition. Upon further inspection it is found to have slight friction or rub keeping it from a mint state grade. Same as Almost Uncirculated.

fields splendid, palmetto with faintest trace of rub. Exceedingly rare." At that time, only two previous auction records were cited. The catalogue description ends with: "We believe this is the finest reported." ...

Look closely at the amount of hair detail on Liberty and feather detail on the eagle's wings. Don't clean or rub your coins to get a clear view, use a magnifying glass. These coins are that important.

Almost Uncirculated The grades AU50, 53, 55, and 58. A coin that on first glance appears Uncirculated but upon closer inspection has slight friction or rub.

Try soaking the coin for a few days either in olive oil or soapy water, followed by a thorough rinse with tap water. Dry the coin with compressed air or allow it to air dry. Do not rub the coin.

If the silver coin you want to clean has only some small oxidation spots then you can clean then best with an acid fluid like warm vinegar or sour milk on a soft tissue or a raw potato cut in half and rub the coin with it.

Blue magic liquid metal polish works like magic on virtually every surface.
Directions:
Shake well. Apply small amount with soft cloth. Rub until a black film appears. Buff off with a clean soft cloth or buffer. Blue magic leaves a protective film.

The rub is that it is not clear whether these were the low-denomination Defence Bonds or the $100 and $500 Defence Bonds.

So there's the rub. Far better that they be owned and appreciated by my students, most - although - not all- of whom will cherish and appreciate them.

Experts speculate that MOST state quarters coming straight from the mint grade MS-64 to MS-66. That's because even a mint-state coin is apt to rub or bump up against another coin and create a mark that can easily be seen with or without ...

When such softness is encountered, high grade pieces must be graded by the mint luster remaining. Well-struck coins will first show friction on the cap and the highest point of the hair on the obverse. On the reverse, rub will first show on the wing ...

See also: Coin, Silver, Dollar, Mint, Numismatic