Specifications
Mexican Centenario (50 Pesos) at a glance
Composition
- Alloy
- Gold (90%) + Copper (10%)
- Color
- Warm reddish 90% gold; a large, heavy coin
- Thickness
- 2.69 mm
- Available weights
- 50 Pesos
Provenance
- Issuing mint
- Casa de Moneda de México →
- Mint location
- Mexico City, Mexico
- First minted
- 1921
- Face value
- 50 Pesos (historic)
- Legal tender
- Yes
- IRA eligible (US)
- No
Source: issuing mint specifications, cross-checked against published dealer and grading-service data.
The story
History
The Mexican 50-peso gold coin was first struck in 1921 to mark the centennial of Mexican independence (1821) — earning it the enduring nickname "Centenario." It is one of the largest classic bullion coins, containing a substantial 1.2057 troy oz of fine gold.
The design is among the most admired in the gold world: the Winged Victory (Ángel de la Independencia) — the same emblem atop Mexico City's famous monument — standing before the volcanoes Popocatépetl and Iztaccíhuatl. The reverse bears the Mexican eagle-and-serpent coat of arms.
Originally struck 1921–1947, the Centenario was later restruck by the Mexican Mint (dated 1947) for bullion buyers, so most examples on the market today are official restrikes. Its large size and beautiful design make it a favorite of investors who like to hold meaningful gold weight in a single, historic coin.
- 1921 — First 50-peso "Centenario" for the independence centennial
- Contains 1.2057 oz of fine gold — a large classic coin
- Restruck (dated 1947) for ongoing bullion demand
- Shares the Winged Victory design with the modern Libertad
The two faces
Design
The Winged Victory (Angel of Independence) striding forward with a laurel wreath and broken chain, the volcanoes Popocatépetl and Iztaccíhuatl behind — a monumental, instantly recognizable Mexican design.
The Mexican coat of arms: a golden eagle perched on a cactus, devouring a serpent, within the legend "ESTADOS UNIDOS MEXICANOS."
Representative emblem — no freely-licensed photograph of the Mexican Centenario (50 Pesos) is available, as its modern design is under mint copyright. The gold coin pictured is a generic Wise With Gold illustration, not the actual Mexican Centenario (50 Pesos); the genuine obverse and reverse are described above.
Authentication & counterfeit watch
How to spot a genuine Mexican Centenario (50 Pesos)
A genuine 50-peso Centenario weighs 41.67 g, measures 37 mm across and 2.69 mm thick, containing 1.2057 oz of fine gold — a large, heavy coin that is non-magnetic. Its considerable mass and 37 mm diameter make weight-and-caliper verification straightforward; a coin that "looks right" but weighs light almost certainly has a base-metal core. The deep relief of the Winged Victory and the eagle should be sharp. Most genuine coins are 1947-dated restrikes — a "1947" Centenario is normal and not a red flag.
Authentication guidance is general reference, not a substitute for professional verification. For high-value purchases, buy from reputable dealers and consider professional grading.
For the investor
Investment considerations
The Centenario lets you hold more than an ounce of gold (1.2057 oz) in a single, beautiful, historic coin — attractive to investors who prefer fewer, larger pieces. Because most are official restrikes, supply is reasonable and premiums are moderate for a coin of its size.
It is not US IRA-eligible (90% fine). Liquidity is excellent in Mexico and the US, good internationally given the coin's fame. The large format means a higher absolute price per coin — fine for lump-sum buyers, less suited to small incremental purchases.
As bullion, value tracks its 1.2 oz of gold; the design and history add appeal but common restrikes are not rare. Buy for the gold and the beauty, not for scarcity.
Common questions
Mexican Centenario (50 Pesos) FAQ
How much gold is in a Centenario?
A 50-peso Centenario contains 1.2057 troy oz (37.5 g) of fine gold in a 41.67 g, 90% coin — more than a full ounce in one piece.
Why are most Centenarios dated 1947?
The Mexican Mint produced official restrikes dated 1947 to meet bullion demand, so most coins traded today carry that date. They are genuine government issues, not counterfeits.
Is the Centenario IRA-eligible?
No — at 90% purity it falls below the IRA standard. It’s a bullion and collector coin, prized for size and design.
Is it the same design as the Gold Libertad?
They share the Winged Victory / twin-volcano motif. The Centenario is the large historic 1.2 oz, 90% coin; the Libertad is the modern .999 bullion series.