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Sep 17, 2024 · To help collectors and dealers identify counterfeit coins, NGC has prepared lists of the most commonly counterfeited US, Chinese and world coins with diagnostic information and images from NGC’s extensive database, as well as commentary from the NGC coin grading team.
- Counterfeit Coins
- Determine If The Coin Is Magnetic
- Determine The Weight of The Coin
- Measure The Diameter of The Coin
- Visual Examination Using A 10X Magnifying Glass
- Determination If A Coin Is Made of Silver
- Altered Coins
- Professionally Graded and Authenticated Coins
- Know Your Coin Dealer
- References
Counterfeit coins are nothing new to the world of coin collecting; they have been around for centuries (if not millennia). To avoid getting duped by an unscrupulous coin dealer or collector into unknowingly purchasing a counterfeit coin, there are a few basic techniques and tools that can help. In this article, I present some basic ways to evaluate...
Since silver, gold, and copper coins are not attracted to a magnet, this can be a simple test to tell if the coin has some iron content. Ferrous materials, such as iron and steel, will attach to a magnet and are not part of nearly any United States coins. A good example is a 1943 steel cent that has been copper coated to be passed off as a rare 194...
Many counterfeit coins do not weigh the correct amount, and weighing a coin is a simple method to determine if it was struck on a planchet (or blank) made from the wrong alloy. For United States coins, a weight measurement of the coin and a comparison to the weights listed in A Guide Book to United States Coins (normally called the Red Book); will ...
Counterfeit coins may not have the correct diameter, which is a good indication that the coin may not be genuine. A Vernier Caliper is a simple device used to measure the diameter of coins to +/- 0.1 mm. As with weight, the correct diameter is not a guarantee the coin is genuine, but it is a good data point to help you determine if the coin is real...
Using the 10x magnifying glass to carefully examine the coin’s surfaces and edge to look for irregularities can be very helpful in your quest to detect a counterfeit. Some things to check for: seam around the edge indicating a cast coin, small raised spots or depressions in the field of the coin, and unrealistic or flawed styling of devices and leg...
There are different metal alloys that counterfeiters use that appear to be silver. A “Ring Test” is a simple test that can be performed to determine if a coin is silver. The potential counterfeit coin is balanced on the tip of a finger then struck lightly with a known silver coin on the edge. If the coin is silver it will “ring” for several seconds...
One way to turn a genuine common coin into a valuable rarity is by altering the coin in a specific way. One of the most common alterations is the addition of a mint mark to a coin that did not originally have a mint mark. For example, by adding an “S” mint mark to a genuine 1909 VDB Lincoln cent (a $10 coin), the forger makes the valuable ($500 plu...
The methods presented in the guide will help you identify most of the more obvious counterfeit coins. If you are spending several hundreds or thousands of dollars for a coin, it is recommended that you purchase the coin from a very reputable coin dealer with a return policy or purchase a coin that has been professionally graded and encapsulated by ...
Like nearly every other area of commerce, coin collecting has moved to the internet. Though this change has offered the collector a much larger array of coins to collect, it has also widened the gap between the coin collector and the coin dealer. If you buy your coins from a local person, for example, at a coin club meeting, a coin show, or at a co...
Fivaz, Bill. United States Gold Counterfeit Detection Guide. Whitman Publishing. 2005.Lonesome John. Detecting Counterfeit Coins Book 1, Heigh Ho Printing Company. 1985.Counterfeit Detection: A Reprint from The Numismatist, American Numismatic Association. 1988.Counterfeit Detection: A Reprint from The Numismatist Volume II, American Numismatic Association. 1988.How Do I Detect Counterfeit Coins? If not already apparent from the date and design, there are several ways to verify the authenticity of a gold coin. This includes analysing weights, magneticity, milled edges, the diameter of a coin, micro lettering, and checking for secret images. Coin Magneticity. Precious metal coins are special.
- Magnetic Test. While many fakes can easily pass this test, silver as well as gold bullion for that matter are both non-magnetic. If a bullion coin or bar sticks to a magnet you can easily throw this one out.
- Magnetic Slide Test. Continuing on with magnets, another test you can to spot counterfeit silver is using a magnetic slide. Simple and easy to build, this is a fun way to instantly spot fakes without any complicated testing.
- The Ice Test. Cheap and easy to do, getting some ice from the freezer is a simple way to test both silver coins and bars for authenticity. All you need to do is place the ice on the silver and watch.
- Dimensions Test. This type of test only applies to bullion coins from government mints. Since the most popular is the American Silver Eagle, we will take a look at that particular coin.
Sep 9, 2024 · Understanding the key indicators of authenticity can help you avoid scams and ensure that the coins you add to your collection are genuine. In this guide, we’ll explore practical tips and techniques to help you identify fake coins and safeguard your hobby.
Dec 20, 2016 · Counterfeit, or “fake”, coins are pesky inevitables in the world of coin collecting but there are a number of tips suggested by the Numismatic Guaranty Corporation (NGC) and Professional Coin Grading Services (PCGS).
Sep 14, 2024 · You can easily check for fake money by comparing two bills of the same denomination. Use or obtain an authentic bill from the bank and compare the various aspects of the bill that looks suspicious. See if you can detect any differences between the notes by sight.
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