What Is a Mexican 50 Peso Gold Coin?

Mexico introduced the gold 50 peso in 1921 to commemorate the 100th anniversary of Mexican independence.

The coin is sometimes called a Centenario because of that centennial connection.

It is a large coin. A Mexican 50 peso weighs approximately 41.67 grams and is 90% gold, giving it an actual gold weight of 37.5 grams, or 1.2057 troy ounces.

The remaining metal is primarily copper, which makes the coin more durable than a coin made from pure 24-karat gold.

Why Does a 50 Peso Have More Than an Ounce of Gold?

People accustomed to modern bullion coins sometimes find the 50 peso confusing.

Today, investors are familiar with products built around convenient weights such as one ounce, one-half ounce or one-quarter ounce. The Mexican 50 peso was not originally designed around the modern one-ounce bullion market.

Its specifications came from an earlier monetary system, which is why its gold content works out to the seemingly odd figure of 1.2057 troy ounces.

This can make the Centenario slightly less intuitive as a bullion product, but it certainly does not make it insignificant. It contains more pure gold than a standard one-ounce gold coin.

The Famous Winged Victory Design

The 50 peso is also popular because it is an impressive-looking coin.

The obverse features Mexico’s national coat of arms with an eagle and snake. The reverse features the famous Winged Victory, with the volcanoes Popocatépetl and Iztaccíhuatl in the background.

The design has become one of the most recognizable images in Mexican gold coinage and is closely associated with Mexican national identity and independence.

Why Does My Mexican 50 Peso Say 1947?

This is one of the most confusing things about Mexican 50 peso gold coins.

A coin dated 1947 was not necessarily struck in 1947.

Mexico produced large numbers of restrikes carrying the 1947 date long after that year. As a result, the 1947 date is extremely common and should not automatically be interpreted as the actual year the coin was manufactured.

This can be surprising when someone inherits a coin and naturally assumes the date stamped on it tells them exactly how old it is.

With many 50 peso coins, particularly 1947-dated examples, that assumption is not correct.

Are Older Mexican 50 Peso Coins More Valuable?

Older original-date 50 peso coins tend to be more desirable than the very common 1947-dated restrikes.

Historically, some dates have carried additional numismatic value. At today’s high gold prices, however, the value of the gold itself represents a very large portion of the value of many of the 50 peso coins we encounter.

In practical terms, people often simply prefer the older original issues. They may be more desirable as collectible coins even when the difference in dollar value is relatively small compared with the substantial amount of gold each coin contains.

That is an important distinction. A coin can be more desirable without necessarily carrying an enormous collector premium.

How Much Gold Is in a Mexican 50 Peso?

The important specifications are:

• Total weight: approximately 41.67 grams
• Gold purity: 90%
• Pure gold content: 37.5 grams
• Average Gold Weight (AGW): 1.20 troy ounces

Because gold prices constantly change, we generally do not recommend relying on an old article for a fixed dollar value.

The basic bullion value can be estimated by multiplying the current price of one troy ounce of gold by 1.2057.

Actual dealer buying and selling prices can differ from the theoretical gold value depending on current wholesale markets, demand, condition and other factors.

Why Are Centenarios Used in Gold Jewelry?

The Centenario also has a life outside the traditional coin and bullion market.

Its large size, recognizable design and cultural significance have made the 50 peso especially popular in Mexican and Mexican-American jewelry. The coins are sometimes mounted in substantial gold bezels, pendants and necklaces.

These can become extremely valuable pieces of jewelry simply because of the amount of gold involved.

The coin itself already contains more than 1.2 troy ounces of pure gold. Add a heavy gold mounting and a substantial gold chain, and the total gold value can become considerable very quickly.

Does Mounting a 50 Peso in Jewelry Hurt Its Value?

It can.

A coin that has been soldered, heavily scratched, polished or otherwise damaged during mounting may be less desirable to a coin collector.

However, because a Mexican 50 peso contains so much gold, even a damaged or jewelry-mounted example can still have substantial intrinsic value.

If the coin is still mounted in gold jewelry, the mounting itself may also represent significant value and should be evaluated along with the coin.

Are Mexican 50 Peso Gold Coins Rare?

Most Mexican 50 peso gold coins encountered today should not be considered rare simply because they are old or contain a large amount of gold.

We see them with some regularity.

The common 1947-dated restrikes in particular were produced in very large numbers and frequently trade as gold bullion coins.

Earlier original-date coins can be more desirable, but anyone who inherits a 50 peso should remember that rarity and value are two different things.

A common coin containing 1.2057 ounces of gold can still be worth a great deal of money.

Inherited a Mexican 50 Peso Gold Coin?

Mexican 50 peso gold coins frequently turn up in family collections, estates, safe-deposit boxes and collections of foreign gold coins.

If you inherit one, the most important things to determine are whether the coin is genuine, its actual gold content, whether it is an original issue or common restrike, and whether there is any collector value beyond the gold.

Oakton Coins & Collectibles in Skokie buys and evaluates Mexican gold coins, including 50 peso Centenarios, 20 pesos, 10 pesos, 5 pesos, 2½ pesos, 2 pesos and other Mexican and world gold coins.

We evaluate these coins based on the actual gold market and the coin itself rather than simply assuming that an old date makes a coin rare.

The Mexican 50 peso is a good example of a coin that does not need to be rare to be valuable. With more than 1.2 ounces of pure gold in a single coin, even an ordinary Centenario is a substantial piece of gold.