The San Luis Potosí mint
The San Luis Potosí mint was opened in 1827 and closed in 1893.
The assayers on its decimal coinage were:
| Initial | Name | Began on | Left office on |
| P or S | Pomposo Sanabria (engraver only) | 1867 | 1870 |
| G | Carlos Aguirre Gómez | 1867 | 1870 |
| H | Manuel Herrera Razo | 1870 | 1885 |
| E | Blas Escontría | 1879 | 1881 |
| C | Luis Cuevas | 1885 | 1886 |
| B | 1887 | ||
| R | Mariano Reyes | 1886 | 1893 |
| O | Juan R. Ochoa | 1870 | 1873 |