1979 Mexico 10 Centavos (Cupronickel): Value Guide

If you found a small 1979 Mexican 10 centavos coin, here is the honest answer: in circulated condition it is worth a few cents, not a fortune. Mexico struck millions of these, so age alone means nothing here. The value comes almost entirely from condition, and a truly clean, uncirculated example is the only version worth more than pocket change.

What you actually have

The 1979 10 centavos is a small cupronickel coin from the Casa de Moneda de México (the Mexican Mint). It carries the profile of Benito Juárez, one of Mexico's most important 19th-century presidents, on the reverse, with the national coat of arms (an eagle in profile) on the obverse. This is one of the last small-denomination coins of the "old peso" era, right before the inflation of the 1980s wiped out the fractional coins entirely.

Specifications

Feature	Detail
Denomination	10 centavos
Year	1979
Metal	Cupronickel (copper-nickel alloy)
Weight	1.52 grams
Diameter	15 mm
Edge	Plain (smooth)
Reverse	Profile of Benito Juárez with value
Obverse	National coat of arms, eagle in profile

This is not a silver coin, and it has no bullion value. The cupronickel content is worth essentially nothing at melt, so its entire value as a collectible depends on rarity and condition, not metal.

Is it rare? Is it worth money?

No, the 1979 10 centavos is not rare. It was struck by the millions for daily circulation as part of the Juárez cupronickel series that ran for several years. By 1979, ten centavos already bought almost nothing, so huge numbers of these coins ended up forgotten in drawers or beaten up in daily use.

Here is what drives value on this specific coin:

1. Circulated coins (worn, scratched, dull): a few US cents each. Worth keeping only as a filler for a date set, not for resale.
2. Uncirculated coins (full original luster, sharp relief, no handling marks): these are genuinely harder to find than people expect, and they command a modest premium among collectors building a year-by-year run of the 1970s denominations.

The small size works against survival. These coins take dings easily and are frequently ruined by bad cleaning, so a truly untouched example stands out. Even so, keep expectations grounded: this is an entry-level collector coin, not a headline piece.

The myth to avoid

Social media is full of posts claiming coins like this are "worth thousands." For a common 1979 10 centavos, that is not true. What actually adds value is a genuine, verifiable mint error (off-center strike, die rotation, double strike). Real errors are scarce and can multiply the price. The catch: most "errors" people post online are post-mint damage, such as impact marks, corrosion, or cleaning scratches, which add nothing.

How to check what yours is worth

1. Grade it honestly. Compare your coin to the two tiers above. Is the surface bright with original luster, or dull and scratched? Are Juárez's features and the eagle sharp or flat?
2. Verify it is genuine. Weigh it on a jeweler's scale and measure the diameter with calipers, then compare to the specs above (1.52 grams, 15 mm). Fakes usually miss on weight, diameter, flat relief, or off color.
3. Photograph it properly. Take clear shots of the obverse, reverse, and edge under good light before you sell.

Where to sell it

For a coin at this price level, skip the courier fees and grading costs unless you have a strong uncirculated example. Your best options:

• A verified numismatic shop from the Pesoteca directory, which can appraise it on the spot.
• The Pesoteca buy-and-sell forum, where collectors trade directly, useful if you are building or completing a set.
• If you think you have a real mint error, post it in the Pesoteca forum first so the community can confirm it before you sell.

Don't dump it on the first buyer on Facebook. Even a small premium is worth the extra photo and a quick check against this page.

Have a 1979 10 centavos with full original shine, or one you suspect is a real error? Post your photos in the Pesoteca forum and let the community weigh in before you decide what to do with it.

Centavo coins form the base of the Mexican monetary system. Banxico has changed their diameters, materials and alloys several times over the past few decades to optimize minting costs. The 10 centavos Cupronickel piece struck in 1979 belongs to the Banxico Numismatic Collection catalog documented on its official site.

For Mexican collectors, centavo pieces have value when they capture a change of material, a die error or an atypically low mintage. Banxico has published annual mintages in CM10 since the year 2000. For earlier pieces the data may not be available. This entry follows the convention of the PSM System, one ID per distinct physical piece, not per shared design.