By Littleton Coin Company ………..
Like nearly all collectibles (antiques, classic cars, comic books, baseball cards, stamps and more), the condition or grade of a coin is a major factor in its value. Any coin’s state of preservation determines how much of the original design is still present to be enjoyed, appreciated… and compared to other examples of the same issue. Here are some basic principals of coin grading:
The numerical coin grading scale
Coin grading is done on a scale from 1-70, with numerical grades from MS60 to perfect MS70 (MS denotes Mint State) representing “Uncirculated” coins – those that have not experienced hand-to-hand commercial use. Numerical grades below 60 represent “Circulated” coins – which have been individually handled and will display varying amounts of wear. It’s important to distinguish between grade-significant characteristics of Uncirculated and Circulated coins:
Production and distribution blemishes
No two coins leave the mint where they were produced in exactly the same condition. The quality of planchets or coin blanks can vary, and the dies that impress the designs on the planchets can have marks or cracks that show up on the coins.
In addition, finished coins can receive contact marks when they drop into bins after striking, when they proceed through a counting machine and when placed in cloth mint bags along with many other coins for storage and transportation to the Federal Reserve bank system. Contact marks received at any stage of the minting process or in transportation and storage are called “bag marks” (though only some actually occur in bags). Coins with these production and distribution marks are still considered Uncirculated if they have never been individually handled.
Circulation wear and deterioration
When a coin enters circulation and first begins to show signs of wear, only the highest or most raised parts of the design are affected, because they receive contact from handling first. Grading experts can determine whether a coin has circulated or been handled by carefully examining the high spots for changes in color, texture or detail.
The highest points will first become slightly rounded or flattened, and the finest details begin to merge together. After more handling, the entire design and surface will show light wear or rub, and original mint luster begins to wear away except in recessed areas. Continued circulation reduces the definition and relief (height) of the entire design and eliminates mint luster. When the protective rim wears away, the entire surface flattens and most details diminish or blend together.
How to get started
The best way to learn to grade coins is by comparing actual coins with a magnifier to photographs and descriptions of that type in various grade levels. There are a few excellent grading guidebooks with images of each coin type in each grade. Photograde is an economical basic book using this technique.
For books with more extensive descriptions of each coin type and grade, see Whitman Publishing’s Grading Coins by Photographs by numismatic expert Q. David Bowers featuring full-color coin images. Or this great coin grading guide from NGC’s David Lange, which outlines grading on 70 U.S. coin types.
Begin with a familiar series
You should start with a series or two which are readily available – perhaps Lincoln cents and Washington quarters. Learn the key locations to inspect for wear from handling and the areas where more extensive circulation are detected. As you gain familiarity with grade levels of a coin type, you can practice by examining pieces at coin shops or coin shows in your area. Expand your learning to other types of coins as your time and interest permit.
Coin grading is an art, not a science!
Bear in mind that while generally standardized, coin grading is still a subjective art. As you become proficient with grading, you may or may not agree with the grade listed on someone’s coin holder! To facilitate the exchange of valuable coins, independent grading services including PCGS and NGC certify the authenticity and grade of coins in their custom holders – which protect against harmful environmental conditions.
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Littleton Coin Company is one of the nation’s leading suppliers of coins, paper money and collecting supplies. Since 1945, they have been making collecting fun and easy. For more information about the Littleton Coin Company or the Collector Stories Contest, visit www.littletoncoin.com
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