How can you tell if a US coin is real?

Stacking suspicious coins can reveal inconsistencies in their size and thickness. If you notice that some coins are taller or thinner than others, they may be counterfeit. Genuine coins will all be the same size and thickness.

One effective method to detect counterfeit coins is by checking gold and silver coins with a magnet. Genuine gold and silver coins should not be attracted to a magnet, as they are not magnetic. If a coin is pulled towards the magnet, it is likely a fake.

Another way to spot counterfeit coins is by examining them closely for visual imperfections. This includes looking for irregularities in the coin's design, such as uneven edges, raised areas, or missing details. Genuine coins will have smooth, even surfaces and crisp details.

Weighing and measuring coins is also a useful technique. Each type of coin has a specific weight and diameter, and counterfeits often do not match these specifications. By using a scale and caliper, you can compare the coin's measurements to known standards to determine its authenticity.

Pinging silver and gold coins can provide insight into their authenticity. When dropped onto a hard surface, genuine coins will make a characteristic "ping" sound. Counterfeit coins, on the other hand, may make a dull thud or no sound at all.