Fake or original? Methods for determining the authenticity of the coin
Coin (lat. Moneta) - a banknote made of metal or other material of a certain form, weight and dignity. In addition to high-grade coins, small, collectible, commemorative and investment coins are issued. Most often, coins are made of metal by the method of coinage and have the shape of a regular circle.
The condition of coins is an indicator reflecting mainly the presence and degree of wear (worn), as well as other damage and deficiencies in coins, used by experts in the field of numismatics for collection and commercial purposes.
Determine whether it is an original or a fake, it can be very difficult. Especially for someone who is not an expert in this matter is not. We suggest that you familiarize yourself with the most understandable ways to determine the authenticity of coins.
The importance of assessing the condition of the coins
Attentive collectors numismatists and professional dealers in the coin market attach considerable importance to the state or degree of preservation of coins. The condition of the coin is the most important criterion determining its collection value. The collection or numismatic value of a coin is the difference between its nominal value (or the price of the metal of the coin) and the amount that collectors are willing to pay for this coin.
Assessment of the state of a coin has the main purpose of determining its numismatic (or collection) price. Due to the fact that most of the ancient coins in the process of their long circulation significantly wore out, the coins in a high degree of preservation remained much smaller than the strongly erased coins. That is why coins in good condition sometimes have a very high collection value compared to the same, but at the same time poorly preserved specimens. In today's numismatic market, a very small difference in the condition of some coins can sometimes mean a multiple difference in their price.
The market for collection coins is constantly changing, and along with it scientific and commercial standards and ideas regarding the determination of coin safety are gradually changing. Over the years, the condition of coins increasingly affects their collection price, and with it the assessment of the condition of coins gradually becomes more and more detailed and accurate.
Catalog method. Sometimes, to determine the original coin, it is enough to make a comparison with an example from the reference book. Often counterfeiters create coins specifically for non-experts, so their efforts to achieve identity are not enough.
Coin weight and diameter
Weight and diameter of the coin. Always check the weight of the coin that is listed in the directory. This procedure is worth doing with the diameter. The conclusion suggests itself if the data does not match.
Checking All copies of old coins today are made by casting. But earlier for this they used only coinage. Coins of different manufacturing methods are fairly easy to distinguish.
Detachment. To create such an effect is almost impossible. Delamination appears over time due to internal corrosion of ligature impurities.
Stamp shine. The hollow areas in the inscriptions on old coins often retain their initial brilliance. For example, the coin box inside the letter O. Stamp shine is preserved, even in the case of short-term use of coins.
Using a microscope
Use a microscope. 400-800 fold increase will help to make out a special kind of corrosion, which is inherent only in ancient coins.
Comparison with genuine coin
Comparison with genuine coin. The best way is to match this copy. Comparison of the relief and the field will help to establish that the coins were minted with one stamp.
Spectral analysis. It makes it possible to determine the sample and composition of the ligature. If the analyzes of two coins are similar, then we can assume that they were minted at the same time.
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