Gradi conservazione monete USA

[thommys]

Dal catalogo World Coins ho notato che le monete USA hanno per la conservazione dei valori differenti...

G-4 VG-8 F-12 VF-20 XF-40 AU-50 MS-60 MS-65 Prf-65 e io dall'alto della mia ignoranza non so che significato abbiano...

quindi la mia domanda è cosa significano le sigle americane??

e sopratutto perchè le monete americane hanno sigle differenti??

[darioelle]

In ogni stato avrai delle sigle diverse per contrassegnare le conservazioni, in Francia o in Spagna ad esempio trovi altre scale diverse dalla nostra e da quella anglosassone.

Ciò detto ti riporto quanto scritto sul World Coins sperando che il tuo inglese possa aiutarti :rolleyes:

CONDITIONS/GRADING

Wherever possible, coin valuations are given in four or five grades of

preservation. For modern commemoratives, which do not circulate, only

uncirculated values are usually sufficient. Proof issues are indicated by

the word “Proof” next to the date, with valuation proceeded by the word

“value” following the mintage. For very recent circulating coins and coins

of limited value, one, two or three grade values are presented.

There are almost no grading guides for world coins. What follows is

an attempt to help bridge that gap until a detailed, illustrated guide

becomes available.

In grading world coins, there are two elements to look for: 1) Overall

wear, and 2) loss of design details, such as strands of hair, feathers on

eagles, designs on coats of arms, etc.

The age, rarity or type of a coin should not be a consideration in grading.

Grade each coin by the weaker of the two sides. This method

appears to give results most nearly consistent with conservative American

Numismatic Association standards for U.S. coins. Split grades, i.e.,

F/VF for obverse and reverse, respectively, are normally no more than

one grade apart. If the two sides are more than one grade apart, the

series of coins probably wears differently on each side and should then

be graded by the weaker side alone.

Grade by the amount of overall wear and loss of design detail evident on

each side of the coin. On coins with a moderately small design element,

which is prone to early wear, grade by that design alone. For example, the

5-ore (KM#554) of Sweden has a crown above the monogram on which the

beads on the arches show wear most clearly. So, grade by the crown alone.

For Brilliant Uncirculated (BU) grades there will be no visible signs

of wear or handling, even under a 30-power microscope. Full mint luster

will be present. Ideally no bags marks will be evident.

For Uncirculated (Unc.) grades there will be no visible signs of wear or

handling, even under a 30-power microscope. Bag marks may be present.

For Almost Uncirculated (AU), all detail will be visible. There will

be wear only on the highest point of the coin. There will often be half or

more of the original mint luster present.

On the Extremely Fine (XF or EF) coin, there will be about 95% of

the original detail visible. Or, on a coin with a design with no inner detail

to wear down, there will be a light wear over nearly all the coin. If a

small design is used as the grading area, about 90% of the original

detail will be visible. This latter rule stems from the logic that a smaller

amount of detail needs to be present because a small area is being

used to grade the whole coin.

The Very Fine (VF) coin will have about 75% of the original detail

visible. Or, on a coin with no inner detail, there will be moderate wear

over the entire coin. Corners of letters and numbers may be weak. A

small grading area will have about 66% of the original detail.

For Fine (F), there will be about 50% of the original detail visible. Or,

on a coin with no inner detail, there will be fairly heavy wear over all of

the coin. Sides of letters will be weak. A typically uncleaned coin will

often appear as dirty or dull. A small grading area will have just under

50% of the original detail.

On the Very Good (VG) coin, there will be about 25% of the original

detail visible. There will be heavy wear on all of the coin.

The Good (G) coin's design will be clearly outlined but with substantial

wear. Some of the larger detail may be visible. The rim may have a

few weak spots of wear.

On the About Good (AG) coin, there will typically be only a silhouette

of a large design. The rim will be worn down into the letters if any.

Strong or weak strikes, partially weak strikes, damage, corrosion,

attractive or unattractive toning, dipping or cleaning should be

described along with the above grades. These factors affect the quality

of the coin just as do wear and loss of detail, but are easier to describe.

In the case of countermarked/counterstamped coins, the condition of

the host coin will have a bearing on the end valuation. The important factor

in determining the grade is the condition, clarity and completeness of

the countermark itself. This is in reference to countermarks/counterstamps

having raised design while being struck in a depression.

Incuse countermarks cannot be graded for wear. They are graded by

the clarity and completeness including the condition of the host coin which

will also have more bearing on the final grade/valuation determined.

[lgmoris]

Aggiungo all'ottima descrizione di Darioelle questa tabellatura di conversione utile per altri Stati .:)

Modificato 16 Aprile, 2011 da lgmoris

[nibanny]

Dal catalogo World Coins ho notato che le monete USA hanno per la conservazione dei valori differenti...

G-4 VG-8 F-12 VF-20 XF-40 AU-50 MS-60 MS-65 Prf-65 e io dall'alto della mia ignoranza non so che significato abbiano...

quindi la mia domanda è cosa significano le sigle americane??

e sopratutto perchè le monete americane hanno sigle differenti??

Qui sotto trovi un link interessante in italiano.

Wikipedia

Il perché abbiano sigle differenti credo che sia dovuto dal fatto che la lingua è differente! ;)

A parte gli scherzi, non esiste un nomenclatura internazionale per i gradi di conservazione.

[thommys]

Il perché abbiano sigle differenti credo che sia dovuto dal fatto che la lingua è differente! ;)

che i termini fossero differenti a causa delle diverse lingue la ritenevo una cosa ovvia :P , quello che non capivo guardando il catalogo WC era come mai per le monete USA ci fossero molti più gradi di conservazione :blink: , adesso vedendo la pagina che mi hai linkato di wikipedia capisco che i gradi di valutazione USA sono molto più complessi o forse è meglio dire più dettagliati, più attenti alle sfumature,

grazie a tutti

[incuso]

Occorre considerare che la monetazione statunitense è recente visto che inizia alla fine del 700 e soprattutto è una sola. I nostri gradi di conservazione devono abbracciare monetazioni che si spingono ben oltre nel tempo e di stati differenti. Diventa ragionevole utilizzare definizioni a grana grossa come le nostre.