| Obverse description | Coat of arms, legend around. |
|---|---|
| Obverse script | Latin |
| Obverse lettering | · EN UNION Y LIBERTAD · |
| Reverse description | Mountain, flags and crossed cannons below, legend around. |
| Reverse script | Latin |
| Reverse lettering | ·REPUBLICA ARGENTINA·R· 1840·S8 |
| Edge | |
| Mint | |
| Mintage | 1840 R - - |
| Numisquare ID | 3753957070 |
| Comments |