1974 Mexico 20 Centavos (Brass): What It's Worth

If you inherited or found a 1974 Mexican 20 centavos and hoped it was a hidden windfall, the honest answer is no. In circulated condition this coin is worth a few US cents, sometimes less than face value. Only pristine, uncirculated examples reach a dollar or two. It is one of the most common Mexican coins ever struck.

That is not bad news, it is just reality. Millions of these brass pieces went into circulation, so age alone does nothing for the price. What follows is what yours is actually worth, how to grade it, and where to sell if you have a nicer one.

What this coin is

The 1974 20 centavos is a brass coin from Mexico's older peso system (before the 1993 currency revaluation). It carries the value "20 CENTAVOS" (twenty centavos, one fifth of an old peso) on the reverse, along with the date and the Mo mint mark of the Casa de Moneda de México, the Mexican Mint, the oldest mint in the Americas.

Technical specs

What it's actually worth in 2026

There is no silver or gold here, so there is no melt value floor to speak of. Brass is cheap. Value comes entirely from condition and demand from collectors filling a date set, and demand for this issue is low because it is so common.

These are collector ranges, not guarantees. A coin has to be genuinely uncirculated, with full luster and no wear on the high points, to reach the top of this scale. A shiny coin that has clearly been in a pocket is still a circulated coin.

The "rare 1974" myth

Social media loves to slap huge prices on ordinary coins from the 1970s. Do not fall for it. The 1974 20 centavos is not rare and never has been. If a video or listing claims one is worth hundreds or thousands of dollars, they are either describing a certified error coin (see below) or making it up to get clicks.

The only 20 centavos brass pieces that command real money are verified mint errors: off-center strikes, die rotations, double strikes, or documented die varieties. Genuine, certified errors can multiply the value many times over. The catch is that most "errors" people post online are just post-mint damage: dings, corrosion, or coins that were altered after leaving the mint. That damage lowers value, it does not raise it.

If you think you have a real error, do not guess. Post clear photos in the Pesoteca forum and let collectors weigh in before you get excited or sell it cheap.

How to tell if yours is genuine

This is a low-value coin, so outright counterfeits are rare, faking a 20-cent piece is not worth a forger's time. Still, a quick check settles it:

• Weigh it. It should hit 10 grams on a jewelry scale.
• Measure the diameter. It should be 28.58 mm with a caliper.
• Look at the strike. Genuine coins have crisp relief and even brass color. Flat detail, wrong weight, or uneven coloring points to a problem or heavy wear.

Compare against the specs in the table above. If the numbers match, it is almost certainly authentic. For a full walkthrough on assessing condition, see our Mexican coin grading guide.

Where to sell it

Be realistic: a single worn example is not worth the shipping. Where selling makes sense is if you have a roll, a full run of dates, or a certified uncirculated or error piece.

• Verified coin shops: Use the Pesoteca shop directory to find a numismatic dealer near you who will appraise it in person, no middleman markup.
• Collector marketplace: List it in the Pesoteca buy-and-sell forum, where you reach people who actually collect these.
• Photograph the obverse, reverse, and edge, and check the price ranges on this page before accepting any offer. Skip dumping it on a general social platform to the first bidder.

Got a 1974 20 centavos and think the strike looks off, or you have a whole box of old Mexican coins to sort? Post your photos in the Pesoteca forum and we'll help you figure out what's worth keeping.

The circulating centavo coins in Mexico during the second half of the twentieth century were struck in alloys that changed according to the cost of metals: copper, bronze and brass in low denominations (1¢, 5¢, 20¢); cupronickel for intermediate denominations (25¢, 50¢, later 10¢); and .720 silver for some 25¢ and 50¢ pieces in the 1950s. Each change of alloy generated a distinct variant of the same face value. 1974 corresponds to the period in which this variant was in circulation, before the transition to Nuevos Pesos in 1992. The Mexican Mint kept the basic design of the National Coat of Arms on the obverse and the numeric value on the reverse throughout this era.