Mexican 10 Centavos 1940 (Cupronickel): What It's Worth

If you inherited or found a 1940 Mexican 10 centavos, here's the honest answer: in worn condition it's worth cents, not dollars. This is a small circulation coin, not a rare treasure. A clean, high-grade example can climb into the low double digits in USD, but only if it truly survived the daily grind. No silver, no fortune.

This is one of the most common coin misunderstandings we see. An old date does not mean value. The 1940 10 centavos was made to buy bread and make change, so millions passed through hands until they were worn flat. Age is not the driver here; condition is.

What this coin actually is

The 1940 10 centavos is a tiny cupronickel piece struck by the Casa de Moneda de México (the Mexican Mint). "Cupronickel" just means a copper-nickel alloy: no silver, no gold, no precious metal floor. Its value rests entirely on how well it's preserved and whether a collector wants that exact date.

It's genuinely small. At 15 mm across it fits easily on a fingertip, which makes it easy to identify once it's in your hand.

Feature	Detail
Denomination	10 centavos
Year	1940
Metal	Cupronickel (copper-nickel, no silver)
Diameter	15 mm
Weight	1.52 g
Edge	Plain (smooth)
Mint	Casa de Moneda de México

What it's worth in 2026

Be realistic. This coin sits at the low end of the market.

• Worn / heavily circulated: a few cents to about 1 USD. This is where most surviving examples land.
• Lightly circulated with clear detail: roughly 2 to 6 USD.
• Uncirculated or near-mint, sharp strike: can reach the low double digits in USD, sometimes more if certified in a top grade.

Because the 1940 10 centavos circulated hard, well-preserved examples are the exception, not the rule. That scarcity of quality (not scarcity of the date itself) is what separates a 25-cent coin from a 15-dollar coin. It fits neatly into a date-run collection of early-to-mid 20th century Mexican fractional coinage, which is where collector demand comes from.

Is it rare?

No, not in worn condition. Plenty exist. What is uncommon is a specimen that came through decades of use with crisp detail and original luster. If yours looks nearly new, it's worth having a closer look. If it's smooth and dark, it's a common coin with modest value.

How to check what yours is worth

1. Weigh and measure it. Use a jewelry scale and a caliper. Genuine pieces weigh 1.52 g and measure 15 mm. Wrong weight or diameter is a red flag.
2. Grade the condition. Sharp lettering, full design detail, and shine push value up. Wear, scratches, and corrosion push it down.
3. Photograph both sides and the edge. Good lighting, no glare. This is what any buyer or appraiser needs to see.
4. Compare against the figures above before you accept any offer.

Errors and varieties

Genuine mint errors (off-center strikes, die rotation, doubled strikes) can multiply the value of a piece like this. But most "errors" people post online are post-mint damage: bumps, corrosion, or scratches, not factory mistakes. If you think you have a real error, don't guess. Post clear photos in the Pesoteca forum and let experienced collectors weigh in.

Where to sell it

• A verified coin shop from the Pesoteca dealer directory can appraise it on the spot and quote a fair price.
• The Pesoteca buy-and-sell forum connects you directly with collectors who want date-run pieces.
• For a single low-value coin, don't expect a windfall. Fees and shipping can eat most of the value on a common example. It makes more sense to sell as part of a group or lot.

Have a jar of old Mexican fractional coins beyond this one? Post your best dates and photos in the Pesoteca forum and we'll help you figure out which ones are keepers and which are pocket change.

Centavo coins form the base of the Mexican monetary system. Banxico has changed their diameters, materials, and alloys several times over the past decades to optimize minting costs. The 10 centavos cupronickel piece struck in 1940 belongs to the Banxico Colección Numismática 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 publishes the annual mintages in CM10 from the year 2000 onward. 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.