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Assigning a grade to a coin is an art, not a science. It is often highly subjective, especially when working with Mint State coins where small differences in grade make big differences in price. Even so, grading can be studied, learned and applied with known and predictable results that ultimately rest on judgment, rather than "feeling."

Like any science, language, sport, or field of study, it is best to break grading down to its basic components, and master them one at a time. Learning how to grade coins is much the same as learning how to speak English;
not try to learn it all at once, but through experience and study.

The essence of grading a coin (once you have determined it is uncirculated or proof) can be broken down into four distinct factors:

1. Surface Preservation - This includes the presence of bag marks, hairlines from cleaning or mishandling, and other imperfections of planchet, whether mint caused or man made. An analysis of surface preservation attempts to weigh the visual impact of these imperfections based on their degree of severity and their location on the coin.

2. Strike - Refers to the sharpness and completeness of detail, with the normal characteristics of that particular type, date and mint mark (i.e. issue) taken into account.

3. Lustre - This encompasses the brilliance, cartwheel, sheen and contrast of the coin, again taking the normal characteristics of the particular issue into account. Minor (non-hairline producing) cleaning, retoning, friction, etc., are evaluated under this category.

4. Eye-Appeal - That certain aesthetic appeal that results from the attractiveness of the toning (if any), the balance of the coin, and the effect of the combination of all of the coin's qualities.

Surface Preservation is the single most important factor in grading mint state coins. The other three factors appear to be approximately equal in value, each about half as important as surface preservation. (i.e. 40% + 20% + 20% + 20% = 100%). Actually, this formula is somewhat arbitrary since it is really a function of the standards of the scales used for each of the factors themselves.


General Grading Standards for U.S. Coins

Good (G) - Coin will be heavily worn, but the main design and legend will be visible. Lettering may be worn smooth. May be dull or faded areas.

Very Good (VG) - Still well worn but more of the rim will be evident. Design and legend will be clear but worn flat. Lacks specific details.

Fine (F) - Medium to heavy wear but even overall. The design becomes clearer and details begin to appear. Some letters within the design will be apparent.

Very Fine (VF) - A visibly nicer coin. High spots will show light, even wear. Various major features are visible. Lettering is all readable.

Extra Fine (XF) or (EF)- Slight wear will show on the highest points of the main devices. Words are sharp and easily readable. All details are clearly defined.

AU 50 - Slight traces of wear on the highest points of the coin; may be dull with some evidence of luster under any toning.

AU 53 - Just slightly better than an AU 50 with a little more luster visible. Eye appeal begins to make a difference between the AU grades.

AU 55 - An obviously nicer coin than an AU 50 with no major difficulties. More luster shines through the surfaces.

AU 58 - This is oftentimes called a slider as it will appear to many observers to be uncirculated. Just the faintest wear on the highest points of the coin. Luster should be quite evident, although some toning can be apparent. Usually coins with poor eye appeal will not make the AU 58 grade.

MS 60 - Mint State indicates a coin that has no wear and is uncirculated. It may have numerous bagmarks and/or be toned. MS 60 is the lowest quality of an uncirculated coin.

MS 61 - An uncirculated coin that is just slightly better than MS 60. However, no question that it is uncirculated. Whereas, some may debate over the merits of a coin being MS60 because of the excessive bagmarks, the MS61 should be more desirable.

MS 62 - This coin should be a much cleaner specimen than an MS 60, yet, just slightly better than an MS 61. There should be fewer bagmarks as the coin takes on more attractive features.

MS 63 - This is the grade that many collectors feel is the most collectible in numismatics. Prices are typically reasonable compared to higher grades and the coin should have at least an average strike and eye appeal, with minimal distracting marks.

MS 64 - This is the grade where prices in many series begin to increase dramatically. For this reason the coin will begin to show fewer marks and the strike will be the strongest yet. No primary distractions that will draw your eye. A near-gem coin with just a few tiny marks or weakness in strike to keep it from a higher grade.

MS 65 - This is the gem category. Coin should be fully struck with eye appeal. Either brilliant or toned but there should not be any unsightly marks or color that negates eye appeal. Any marks should be very minor in appearance. Prices spread out even further.

MS 66 - A coin that just jumps out at you as being nicer than an MS 65. The main devices on either side should have no more than very minor ticks and the fields should be cleaner than that of an MS 65.

MS 67 - A superior coin that has no major distractions to speak of. The fields should be near flawless with just the slightest contact on the main device. This coin should emit a look of satisfaction from the viewer. Prices increase further especially for coins with short supplies and strong demand.

MS 68 - A difficult grade to determine by most experts. When does a coin become MS 68 but is not quite MS69 or 70 A very superior coin with maybe just a minor tick on either side keeping it from perfection.

MS 69 - This is a coin that should create a gasp when viewed. There should be no imperfections to the naked eye. With a magnifying glass a minor mark or impediment may be visible.

MS 70 - A perfect coin with no imperfections seen with a magnifying glass. There should be no marks whatsoever; the coin must look like it just left the Mint. Very unusual in early coins as the mint did not have the quality they do today. Modern coins have been given this exalted grade although there is debate whether coins can be perfect.

As you proceed to higher grades, there should be a noticeable difference in each grade and an improvement in quality, strike, and eye appeal. However, since grading is subjective, it will still be difficult for most numismatists to see a distinct difference from one grade to the next. This is especially so in grades of MS67 and higher.

Any kind of damage or cleaning will downgrade the potential value of a coin.

Designation Description
Color: RD Red
Color: RB Red-Brown
Color: BN Brown
Strike: FS Full Steps
Strike: FB Full Bands
Strike: FH Full Head
Strike: FBL Full Bell Lines
Surface: DM Deep Mirror Prooflike
Surface: PL Prooflike
Surface: DC Deep Cameo
Strike: CA Cameo
Strike: BM Branch Mint Proof

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