Reales issues of the Zacatecas mint (8 reales)
KM-377.13 8r 1841 Zs OM (Stack’s Bowers Hong Kong Auction , 8 October 2022, lot 54473)
Diameter 39 mm. 27.070 g, 0.90277 silver
| Date | Asssayer | Recorded Mintage |
Comment |
| 1825 | AZ | This die style ran from 1825 through 1842. | |
| 1826/5 | AZ | ||
| 1826 | AZ | ||
| 1826 | AV | ||
| 1826/5 | AO/AZ | ||
| 1826 | AO | ||
| 1827 | AO | ||
| 1828/7 | AO | illustrated below | |
| 1828 | AO | wide date | |
| 1829 | AO | ||
| 1829 | OV | ||
| 1830 | OV | ||
| 1831 | OV | ||
| 1831 | OM | ||
| 1832/1 | OM | ||
| 1832 | OM | ||
| 1833/2 | OM | ||
| 1833 | OM | ||
| 1834 | OM | small 34 in date | |
| 1834 | OM | medium 34 in date | |
| 1834 | OM | large 34 in date | |
| 1835 | OM | ||
| 1836/5 | OM | ||
| 1836 | OM | ||
| 1837 | OM | ||
| 1838/7 | OM | ||
| 1838 | OM | ||
| 1839/7 | OM | reported, but all examples that Dunigan and Parker had examined were the result of a broken die | |
| 1839 | OM | ||
| 1840 | OM | ||
| 1841 | OM | ||
| 1842 | OM | This is the last year of the die style of 1825-1842 and the first of the new die style of 1842-1845. eagle style of 1841 | |
| 1842 | OM | eagle style of 1843. The new die style is engraved in lower relief and there is an axis change from medal to coin | |
| 1843/33 | OM | ||
| 1843 | OM | ||
| 1843 | OM | U/B in REPUBLICA . The die sinker forgot to punch the U in REPUBLICA. He must have discovered the error immediately as he punched a U over the B and finished the legend | |
| 1844 | OM | ||
| 1845 | OM | this date ends the die style of 1842-1845 and begins the new die style of 1845-1882 | |
| 1845 | OM | die style of 1845-1882 | |
| 1846/5 | OM | ||
| 1846 | OM | ||
| 1847 | OM | ||
| 1848/7 | OM | ||
| 1848 | OM | ||
| 1849 | OM | ||
| 1850 | OM | ||
| 1851 | OM | ||
| 1852 | OM | ||
| 1853 | OM | ||
| 1854 | OM | ||
| 1855 | OM | ||
| 1855 | MO | ||
| 1856/5 | MO | ||
| 1856 | MO | ||
| 1857/6 | MO | ||
| 1857 | MO | ||
| 1858/7 | MO | illustrated below | |
| 1858 | MO | ||
| 1859/8 | MO | ||
| 1859/8 | MO | ||
| 1859 | VL/MO | ||
| 1859 | VL | ||
| 1860/50 | MO | ||
| 1860/59 | MO | ||
| 1860 | MO | ||
| 1860 | VL V/M | ||
| 1860 | VL | ||
| 1861/0 | VL V/M | ||
| 1861/0 | VL | ||
| 1861 | VL | ||
| 1862/1 | VL | ||
| 1862 | VL | ||
| 1863 | VL | ||
| 1863 | MO | ||
| 1864/3 | VL | ||
| 1864 | VL | issued while Maximilian's forces controlled the mint (6 February 1864 - 29 November 1866) | |
| 1864 | MO | ||
| 1865/4 | MO | ||
| 1865 | MO | ||
| 1866 | VL | circulating counterfeit | |
| 1867 | JS | ||
| 1868 | JS | ||
| 1868 | YH | ||
| 1869 | YH | ||
| 1870 | YH | ||
| 1873 | YH | Coinage of 8 reales is resumed after the cancellation of the Balance Scale Peso series | |
| 1874 | YH | ||
| 1874 | JA J/Y | ||
| 1874 | JA | ||
| 1875 | JA | ||
| 1876 | JA | ||
| 1876 | JS | ||
| 1877 | JS | 2,700.000 | |
| 1878 | JS | 2,310,000 | |
| 1879/8 | JS | ||
| 1879 | JS | ||
| 1880 | JS | ||
| 1881 | JS | 5,592,000 | |
| 1882/1 | JS | 2,485,000 | Steam powered presses were introduced at Zacatecas in 1881, resulting in improved quality of coinage beginning in 1882. This date ends the die style of 1845-1882 and begins a new style for 1882-1886. Full J |
| 1882 | JS | Die style of 1845-1882, Full J (illustrated below) | |
| 1882 | JS | Mule with obverse die of 1845-1882 and reverse die of 1882-1886. Full J. | |
| 1882 | JS | One other set of dies was either made at Guanajuato or made from Guanajuato hubs lacking the mintmark. This issue has a full J and features a cap that is bolder than the earlier Zacatecas die style | |
| 1882/1 | JS | The die style of 1882-1886 all have a straight J. | |
| 1882 | JS | straight J | |
| 1883/2 | JS | 2,563,000 | |
| 1883 | JS | ||
| 1884 | JS | ||
| 1885 | JS | 2.252,000 | |
| 1886/5 | JS | 5,303,000 | |
| 1886 | JS | ||
| 1886/7 | FZ | ||
| 1886 | FZ | ||
| 1887 | FZ | 4,733,000 | |
| 1887 | FZ | Z mintmark (superscript s missing). Although surely the result of a momentary lapse by the die sinker this is nonetheless a separate mint mark type | |
| 1888/7 | FZ | 5.132,000 | |
| 1888 | FZ | ||
| 1889 | FZ | 4,344,000 | |
| 1890 | FZ | 3,887,000 | |
| 1891/0 | FZ | 4,114,000 | illustrated below |
| 1891 | FZ | ||
| 1892/1 | FZ | 4,238,000 | illustrated below |
| 1892 | FZ | narrow date | |
| 1892 | FZ | wide date | |
| 1893 | FZ | 3,872,000 | |
| 1894/3 | FZ | 3.081,000 | |
| 1894 | FZ | ||
| 1895 | FZ | 4,718,000 | |
| 1896 | FZ | 4,226,000 | |
| 1897 | FZ | 4,877,000 |
KM-377.13 8r 1828/7 Zs AO (Stack’s Bowers auction, 28 February 2024, lot 73330)
KM-377.13 8r 1858/7 Zs MO (Stack’s Bowers auction, 31 October 2023, lot 70900)
KM-377.13 8r 1865/4 Zs MO (Stack’s Bowers auction, 31 October 2023, lot 70914)
KM-377.13 8r 1882 Zs JS (Stack’s Bowers auction, 19 September 2025, lot 76476)
Variety with full "J" and mule of 1845-82 obverse die with 1882-86 reverse die.
KM-377.13 8r 1882 Zs JS (Stack’s Bowers auction, 16 May 2022, lot 63395)
Variety with straight “J”
KM-377.13 8r 1887 Z FZ (Stack’s Bowers auction, 26 August 2022, lot 34450)
KM-377.13 8r 1891/0 Zs FZ (Stack’s Bowers auction, 31 October 2023, lot 70949)
Displaying an overdate visible under magnification
KM-377.13 8r 1892/1 Zs FZ (Ponterio Baltimore auction, June 2011, lot 6619)
Counterfeits
counterfeit KM-377.13 8r 1829 Zs AO (Briggs & Bustos Counterfeit issues, 22 February 2025, lot 37)
Struck in silver.
counterfeit KM-377.13 8r 1831 Zs OM (Briggs & Bustos Counterfeit issues, 22 February 2025, lot 38)
Struck in silver. This is absent in Riddell, greater similarity of design on the side of the cap while on the obverse the eagle is thinner.
counterfeit KM-377.13 8r 1832 Zs OM (Briggs & Bustos Counterfeit issues II, 10 August 2025, lot 78)
Struck in low-fineness silver, 27.48 grams, 38.8 millimeters in diameter, medal alignment. Interesting contemporary counterfeit, notable for its exceptional similarity to the official issue of the Zacatecas mint, described by Riddell (no 223) as “admirably imitated, or perhaps genuine.”
Every design element matches the original, except for the edge, whose engraving is slightly less refined and shows weakness along the rim from 9:00 to 1:00 on the obverse side. Metal composition: 74.37% Silver, 20.62% Copper, 2.58% Zinc, 1.68% Iridium, 0.5572% Lead, 0.1536% Bismuth, and 0.0445% Gold.
counterfeit KM-377.13 8r 1841 Zs OM (Briggs & Bustos Counterfeit issues II, 10 August 2025, lot 79)
Struck on a flan of alloy commonly known as alpaca, 24.84 grams, 38.9 millimeters in diameter, medal alignment. Counterfeit not documented in Riddell’s work, identifiable by the backward “s” letters in the legend on the cap side, along with a reverse distinguished by the eagle’s curled feathers. Diffuse Republican edge cord at 12:00 and 6:00. Metal composition: 66.45% Copper, 16.85% Zinc, 14.98% Nickel, 0.6669% Iron, 0.66% Lead, and 0.3836% Cobalt.
counterfeit KM-377.13 8r 1842 Zs OM (Briggs & Bustos Counterfeit issues II, 10 August 2025, lot 81)
Struck on a low grade planchet. 26.65 grams, 38.2 millimeters in diameter, medal alignment. Easily recognizable by its distinctive Phrygian cap with rounded edges, surrounded by short and narrow rays. Eagle with narrow body and a noticeably smaller left wing. Slight differences in the legend typography. Crude edge design. Metal composition: 54.37% silver, 27.98% copper, 12.06% zinc, 3.48% nickel, 1.1396% lead, 0.76% tin, 0.1202% iron, and 0.0985% Bismuth.
counterfeit KM-377.13 8r 1844 Zs OM (Briggs & Bustos Counterfeit issues II, 10 August 2025, lot 80)
Struck on a flan of alloy commonly known as alpaca with low silver content, 21.16 grams, 38.7 millimeters in diameter, coin alignment. Specimen not reported by Riddell. Features a curious cap design that, when compared to a genuine piece, appears wider and slightly flattened. The reverse shows an eagle characterized by plumage composed of well-defined lines, with an apparent error in the legend: “REPULLICA.” Flan notably thin and the Republican edge cord appears somewhat crude. Metal composition: 56.57% Copper, 20.83% Zinc, 10.78% Nickel, 10.46% Silver, 0.6822% Lead, 0.3868% Cobalt, and 0.2933% Iron.