St Petersburg Mint · Russia
Small Imperial Russian gold coin featuring Tsar Nicholas II. Contains 3.87g fine gold. Minted 1897-1911 at the St Petersburg Mint.
| Mass | 4.301 g |
| Troy Ounces | 0.1244 oz |
| Diameter | 18.5 mm |
| Thickness | 1.2 mm |
| Edge | reeded |
| Purity | 90% Gold, 10% Copper |
| Fineness | 0.9 |
| Density | 17.2 g/cm³ |
| Face Value | 5 RUB |
| Series | Imperial Ruble |
| First Minted | 1897 |
Use these values to verify an authentic Russian Nicholas II 5 Ruble Gold. 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).