The Guadalajara mint

Fernando Sáyago was born around 1849.

On 25 August 1886 Fernando Sáyago entered into a contract with Carlos Pacheco, the Secretario de Fomento,to establish an Oficina Central de Grabado.

As well as being an assayer, Sáyago had another interest, as on 5 September 1889 he and Juan C. Padilla were given a monopoly for ten years to make various types of bricks^{Anuario de legislación y jurisprudencia, Año 1886, núm. 10,561}. These were supplied to the Mexico City government in 1890 to pave sidewalks and is September 1892 the town council was considering buying a further 25,000 bricks for their sidewalks^{El Correo Español, 4 September 1892}

Sáyago was a teniente de ensayador in the Ensaye Mayor in 1890 and in June of that year he was named Ensayador Mayor de la República on the death of Francisco Morales^{El Siglo Diez y Nueve, 18 June 1890}.

He was on the town council of Mexico City, being elected third regidor for 1893^{El Siglo Diez y Nueve, 19 December 1892} and first regidor for 1894^{La Voz de México, 19 December 1893}. However, he only held the post of president municipal for a few days as he began feeling unwell on 2 January. A troublesome laryngeal condition quickly turned into a deadly croup, suffocating him in a very short time. He died on 7 January 1894^{The Two Republics, vol. XXXVIII, no. 7, 9 January 1894: La Patria, Año XVIII, Núm. 5,132, 9 January 1894},

He was succeeded as presidente municipal by Sebastián Camacho.

José Salvador Schiaffino Ametller was born in Sayula, Jalisco on 4 January 1848, the son of Mariano Schiaffino y Vallarta and Adela Ametller y Ponce de León.

In January 1884 he was awarded the title of Ingeniero Ensayador y Apartador de metales by unanimous consent ^{La Voz de México, Tomo XV, Núm. 21, 23 January 1884}. In 1896 he was Jefe del Ensaye Federal de Guadalajara.

Schiaffino was involved in local politics. He served on the Guadalajara city council, being president for the years for the years 1898, 1900, 1901 and 1903 (though he is also recorded as mayor at a banquet on 5 February 1902^{The Mexican Herald, Vol. XIII, No, 157, 6 February 1902}, and elected as an alternate deputy to the state legislature of 1901^{La Patria de Mexico, Año XXIV, Núm. 7,199, 14 November 1900}.

He died in Guadalajara on 23 May 1925.