Sunshine Mint (Buffalo Nickel) specifications and ping frequencies
The Sunshine Mint (Buffalo Nickel) is a silver coin from the United States, weighing 31.105 g with a diameter of 38.4 mm. Tapped gently on its edge, a genuine one rings at about 4.3 kHz, 9.9 kHz and 17.1 kHz: its first resonance frequencies, set by its metal, size and thickness. A counterfeit made of a different metal, or with a different weight or thickness, rings at different frequencies, which is what the ping test above checks.
| Ping test reference frequencies | 4349 Hz · 9909 Hz · 17066 Hz |
|---|---|
| Metal | Silver |
| Composition | 99.9% silver, 0.1% copper |
| Weight | 31.105 g |
| Fine metal content | 31.074 g |
| Diameter | 38.4 mm |
| Thickness | 3.3 mm |
| Country | United States |
Compare with the ping frequencies of every supported coin.
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