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US Mint · United States
American Platinum Eagle 1/4 oz
0.25 troy oz — 99.95% Platinumplatinumdiscontinued
Quarter-ounce American Platinum Eagle produced from 1997 to 2008. Discontinued alongside other fractional platinum denominations.
Physical Specifications
| Mass | 7.7759 g |
| Troy Ounces | 0.25 oz |
| Diameter | 22 mm |
| Thickness | 1.3 mm |
| Edge | reeded |
| Purity | 99.95% Platinum |
| Fineness | 0.9995 |
| Density | 21.45 g/cm³ |
| Face Value | 25 USD |
| Series | American Eagle |
| First Minted | 1997 |
Authentication Reference
Use these values to verify an authentic American Platinum Eagle 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
Diameter22mm
Thickness1.3mm
Use plastic callipers (not steel — avoid scratching). Or use the camera tool with a bank card as reference (ISO 7810: 85.60mm × 53.98mm).