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Decimal issues of the Guanajuato mint (gold)

One peso

Diameter 15 mm.1.692 g. 0.8750 gold 

Date Asssayer Recorded
Mintage
Comment
1870 S    
1871 S    
1888 R    
1890 R    
1892 R    
1894/2 R    
1894 R    
1895 R    
1896/5 R    
1897/6 R    
1897 R    
1898 R   regular obverse
1898 R   mule, 5 centavo obverse, regular reverse
1900/800 R    

 

KM 410.3 1894 2KM 410.3 1894 2 reverse
KM-410.3 $1 1894/2 Go R (Bustos and Briggs auction,  )

overdateKM 410.3 1894 2 detail

 

 

 

 

 

2½ pesos 

Diameter 18 mm. 4.230 g. 0.8750 gold 

Date Asssayer Recorded
Mintage
Comment
1871 S    
1888 R   Go/Mo

 

KM 411.3KM 411.3 reverse
KM-411.3 $2½ 1888 Go over Mo (Briggs & Bustos auction VIII, April 2024, lot 382)

Last date struck at the Guanajuato mint in this rare denomination, the key piece with a mintage of only 110 pieces reported. Elusive as are all the 1888 issues, a very interesting fact is that all of these were struck with a reverse with a re-engraved Go/Mo mint mark, none of them show any trace of an over-assayer. 

Five pesos 

Diameter 22 mm. 8.460 g. 0.8750 gold 

Date Asssayer Recorded
Mintage
Comment
 1871 S    
1887 R    
1888 R    
1893 R    

 

Ten pesos 

Diameter 27 mm. 16.920 g. 0.8750 gold 

Date Asssayer Recorded
Mintage
Comment
1872  S    
1887 R    
1888 R    

 

Twenty pesos

Diameter 34 mm. 33.840 g. 0.8750 gold 

Date Asssayer Recorded
Mintage
Comment
1870 S    
1871 S    
1872 S    
1873 S    
1874 S    
1875 S    
1876 S    
1877 M/S    
1877 R    
1877 S    
1878 S    
1879 S    
1880 S    
1881 S    
1882 S    
1883 B    
1884 B    
1885 R    
1886 R    
1887 R    
1888 R    
1889 R    
1890 R    
1891 R    
1892 R    
1893 R    
1894 R    
1895/3 R    
1895 R    
1896 R    
1897 R    
1898 R    
1899 R    
1900 R