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Casa de Moneda de México · Mexico
Silver Libertad 1/4 oz
0.25 troy oz — 99.9% Silversilvercurrent
Quarter-ounce Silver Libertad introduced in 1991. Features the Mexican coat of arms with the eagle and serpent.
Physical Specifications
| Mass | 7.7759 g |
| Troy Ounces | 0.25 oz |
| Diameter | 27 mm |
| Thickness | 1.7 mm |
| Edge | reeded |
| Purity | 99.9% Silver |
| Fineness | 0.999 |
| Density | 10.5 g/cm³ |
| Face Value | none |
| Series | Libertad |
| First Minted | 1991 |
Authentication Reference
Use these values to verify an authentic Silver Libertad 1/4 oz. All tests can be performed with a digital scale, callipers, and the EON ping tester.
Weight
7.7759grams
Use a 0.001 g digital scale. Calibrate first with a known object (a €2 coin = 8.50g).
Dimensions
Diameter27mm
Thickness1.7mm
Use plastic callipers (not steel — avoid scratching). Or use the camera tool with a bank card as reference (ISO 7810: 85.60mm × 53.98mm).