US returns 3,500 copper coins that were in use more than 500 years ago

The United States returned a collection of over 3,500 pre-Hispanic copper coins to Mexican authorities in a ceremony in Miami on Monday.

The coins were used in what are now Michoacán and Guerrero between the years 1200 and 1500, according to Jessica Cascante, spokesperson for the Mexican Consulate in Miami.

A U.S. collector acquired them in Texas at a numismatic fair in the 1960s, she said, but at that time neither Mexico nor the United States was part of a UNESCO convention that guarantees the return of such heritage artifacts to their countries of origin.

Cascante said the fragile, tongue-shaped coins, which are currently covered in verdigris, will be sent to Mexico in January.

Agents of the U.S. Federal Bureau of Investigations (FBI) who headed the operation to recover the coins attended the presentation ceremony along with the Consul General of Mexico in Miami, Jonathan Chait.

The collection consists of over 3,500 coins.
The collection consists of over 3,500 coins.

Mexican authorities notified the FBI of the existence of the coins in 2013 when they were taken to Spain for an auction. Mexico’s National Institute of Anthropology and History (INAH) then began authenticating the coins in order to request their return.

As both countries were by then signatories to the UNESCO convention (Mexico in 1972 and the United States in 1983), the return process was completed six years later.

Cascante did not divulge the name of the collector who obtained the coins in the 1960s, but said that he did so before it constituted a crime and turned them in voluntarily.

“Now we’re just waiting for the physical material to arrive [in Mexico],” she said, adding that they are currently being packaged with the support of specialists from history museums in Florida.

Source: El Universal (sp)

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Manzanillo, Colima, México, 13 de marzo de 2026. La doctora Claudia Sheinbaum Pardo, presidenta Constitucional de los Estados Unidos Mexicanos en conferencia de prensa matutina, “Conferencia del Pueblo” desde Colima. La acompañan Indira Vizcaíno Silva, gobernadora Constitucional del Estado de Colima; Omar García Harfuch, secretario de Seguridad y Protección Ciudadana (SSPC); Raymundo Pedro Morales Ángeles, secretario de Marina (Semar); Bulmaro Juárez Pérez, divulgador de lenguas originarias, presentador de la sección “Suave Patria”; Ricardo Trevilla Trejo, secretario de la Defensa Nacional (Sedena); Jesús Antonio Esteva Medina, secretario de Infraestructura, Comunicaciones y Transportes; Bryant Alejandro García Ramírez, fiscal general del Estado de Colima; Fabián Ricardo Gómez Calcáneo; Rocío Bárcena Molina, subsecretaria de Desarrollo Democrático, Participación Social y Asuntos Religiosos de la Secretaría de Gobernación; Efraín Morales López, director general de la Comisión Nacional del Agua (Conagua); Marcela Figueroa Franco, secretaria ejecutiva del Sistema Nacional de Seguridad Pública (SESNSP) y Guillermo Briseño Lobera, comandante de la Guardia Nacional (GN). Foto: Saúl López / Presidencia

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