| Number | KM# 444 |
|---|---|
| Country | Brazil |
| Period | Counterstamped coinage (value countermark) (1799 - 1833) |
| Coin type | Circulation coins |
| Denomination | 40 reis |
| Year | 1830 |
| Subject | Countermark on 80 Reis |
| Ruler | Pedro II |
| Composition | Copper |
| Edge type | Smooth |
| Shape | Round |
| Alignment | Medal (0°) |
| Weight (g) | 28.69 |
| Diameter (mm) | 39.6 |
| Thickness (mm) | 2.5 |