Reales issues of the San Luis Potosí mint (4 reales)
Diameter 32 mm. 13.540 g, 0.90277 silver


KM-375.8 4r 1847 Pi JS (Stack’s Bowers Kirk Menczer Collection, 24 June 2026, lot 73263)
Two year type with denomination "4 Rs".
| Date | Asssayer | Recorded Mintage |
Comment |
| 1837 | JS | 6 pointed * | |
| 1838 | JS | ||
| 1842 | PS | ||
| 1843 | PS | 3 cut from 8 punch | |
| 1843/2 | PS | round-top 3 (illustrated below) | |
| 1843/2 | PS | flat-top 3 (illustrated below) | |
| 1843 | AM | ||
| 1843 | PS | normal digits and date | |
| 1844 | AM | small s (illustrated below) | |
| 1844 | AM | large S (illustrated below) | |
| 1845 | AM | ||
| 1845/4 | AM | ||
| 1846 | AM | ||
| 1847 | AM | ||
| 1848 | AM | ||
| 1849 | PS | ||
| 1849 | MC/AM | ||
| 1849 | MC | ||
| 1850 | MC | ||
| 1851 | MC | ||
| 1852 | MC | ||
| 1853 | MC | ||
| 1854 | MC | ||
| 1855 | MC | ||
| 1856 | MC | ||
| 1857 | MC | ||
| 1857 | PS | ||
| 1858 | MC | ||
| 1859 | MC | ||
| 1860 | PS | ||
| 1861 | PS | ||
| 1861 | RO/PS | ||
| 1861/0 | PS | ||
| 1862 | RO | ||
| 1863 | RO | issued while Maximilian's forces controlled the mint (25 December 1863 - 25 December 1866) | |
| 1864 | RO | ||
| 1868 | PS | ||
| 1869 | PS | ||
| 1869/8 | PS | illustrated below |


KM-375.8 4r 1843/2 Pi PS (Stack’s Bowers Kirk Menczer Collection, 24 June 2026, lot 73266)
round-top 3


KM-375.8 4r 1843/2 Pi PS (Stack’s Bowers auction, 13 October 2021, lot 71517)
flat-top 3


KM-375.8 4r 1844 Pi AM (Stack’s Bowers auction, 13 February 2019, lot 71221)
small s


KM-375.8 4r 1844 Pi AM (Stack’s Bowers Kirk Menczer Collection, 24 June 2026, lot 73269)
large S


KM-375.8 4r 1869/8 Pi PS (Stack’s Bowers auction, 14 November 2022, lot 71753)