Decimal issues of the Alamos mint

Silver

Five centavos

Diameter 15 mm. 1.353 g. 0.9027 silver 

Ten centavos 

Diameter 18 mm. 2.707 g. 0.9027 silver 

Diameter 17 mm. 2.707 g. 0.9027 silver 

Twenty-five centavos

Diameter 25 mm. 6.768 g. 0.9027 silver 

Fifty centavos

Diameter 30 mm.13.536 g. 0.9027 silver 

One peso

Diameter 37 mm.27.073 g. 0.9027 silver 

Gold

One peso

Diameter 15 mm.1.692 g. 0.8750 gold 

Five pesos 

Diameter 22 mm. 8.460 g. 0.8750 gold 

KM-412.5 $5 1888 Ca M (Briggs & Bustos auction VIII, April 2024, lot 383)

Undoubtedly the most iconic date of all the coinage of the decimal system, plagued with rarities in various mints and denominations. The Chihuahua mint struck pieces in denominations of 1 Peso, 5 Pesos and 10 Pesos in gold exclusively for 1888, all extremely limited in terms of mintage and in the case of the one offered here only 120 specimens are reported,

Ten pesos 

Diameter 27 mm. 16.920 g. 0.8750 gold 

Twenty pesos

Diameter 34 mm. 33.840 g. 0.8750 gold