Casa de Moneda de México · Mexico
Iconic 37.5g gold coin commemorating Mexican independence. Contains 1.2057 troy ounces of pure gold in a 90% alloy.
| Mass | 41.666 g |
| Troy Ounces | 1.2057 oz |
| Diameter | 37 mm |
| Thickness | 2.69 mm |
| Edge | reeded |
| Purity | 90% Au, 10% Cu |
| Fineness | 0.9 |
| Density | 17.2 g/cm³ |
| Face Value | 50 MXN |
| Series | Centenario |
| First Minted | 1921 |
| Ping Frequency | 3,730 Hz |
Use these values to verify an authentic Mexican Centenario 50 Pesos. All tests can be performed with a digital scale, calipers, and the EON ping tester.
Use a 0.01g digital scale. Calibrate first with a known object (a €2 coin = 8.50g).
Use plastic calipers (not steel — avoid scratching). Or use the camera tool with a bank card as reference (ISO 7810: 85.60mm × 53.98mm).
Balance the coin on your fingertip and tap the edge with a pencil or plastic pen. Use the Ping Tester to analyse the ring.