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Austrian Mint · Austria
Gold Philharmonic 1/25 oz
0.04 troy oz — 99.99% Goldgoldcurrent
Introduced for the 25th anniversary of the Philharmonic series. One of the smallest gold bullion coins available globally.
Physical Specifications
| Mass | 1.244 g |
| Troy Ounces | 0.04 oz |
| Diameter | 13.5 mm |
| Thickness | 0.65 mm |
| Edge | reeded |
| Purity | 99.99% Gold |
| Fineness | 0.9999 |
| Density | 19.3 g/cm³ |
| Face Value | 4 EUR |
| Series | Vienna Philharmonic |
| First Minted | 2014 |
Authentication Reference
Use these values to verify an authentic Gold Philharmonic 1/25 oz. All tests can be performed with a digital scale, callipers, and the EON ping tester.
Weight
1.244grams
Use a 0.001 g digital scale. Calibrate first with a known object (a €2 coin = 8.50g).
Dimensions
Diameter13.5mm
Thickness0.65mm
Use plastic callipers (not steel — avoid scratching). Or use the camera tool with a bank card as reference (ISO 7810: 85.60mm × 53.98mm).