Mexico – 1987 – 1 Onza Platinum Proof

Mexico 1 Onza Platinum 1987 – Extremely rare Proof coin (only 270 pieces)

Description

This exceptional 1 Onza platinum coin from Mexico (1987) was minted by the venerable Casa de Moneda de México (“Mo”) – the oldest mint in the Americas. With a mintage of only 270 pieces worldwide, it is one of the rarest platinum coins from the country . Currently, this piece is the only one available worldwide (as of June 2025).

Technical data

• Material : Fine platinum (.9995)

• Weight : 1 ounce (31.103 g)

• Diameter : 38 mm

• Minting quality : Proof

• Mint : Casa de Moneda de México (mint mark “Mo”)

• Edition : Only 270 copies worldwide

Design

• Obverse : The Mexican coat of arms with eagle, snake and cactus, framed by “REPUBLICA MEXICANA”

• Reverse : Depiction of a historical minting machine with bilingual inscription:

  • ONE OUNCE PLATINUM 999.5

  • UNA ONZA PLATINO 999.5
    1987 P

Historical background

This commemorative coin was issued as part of a numismatic program honoring significant technical developments in coinage. The depicted coining machine symbolizes Mexico’s technological transformation on the path to modern coin production. As a pure collector’s edition in platinum, it was not intended for circulation , but rather specifically designed for an exclusive international collector audience—the mintage was accordingly low.

Special features & collector value

• Only 270 pieces minted worldwide

• Proof quality with highly detailed relief

• Extremely rare on the collector market

• Platinum as a precious metal with long-term value retention

• Ideal for high-quality commemorative coin collections

Conclusion

A true masterpiece of Mexican minting. This platinum commemorative coin ideally combines historical significance, numismatic rarity, and precious metal value—and is currently unique on the global market . An absolute treasure for discerning collectors and investors.