20 Pesos Bicentenario Coin (2010): Value & How to Sell

If you inherited or found a 2010 Mexican 20 Pesos Bicentenario coin, here is the honest answer: most examples are worth a few dollars to maybe 30 or 40 USD in top certified grades. This is a modern commemorative made of copper-nickel, not silver or gold, so there is no precious metal floor holding up the price. Its value comes from collector demand and condition, not from being old or rare.

The coin was struck by Banco de México (Banxico) in 2026 terms it remains a common 2026 collector item, originally issued in 2010 to mark two anniversaries at once: the Bicentennial of Mexican Independence (1810) and the Centennial of the Mexican Revolution (1910). If you were hoping for a life-changing number, this is not that coin. But it is a solid, attractive piece worth keeping.

What it actually is

This is a large 20-peso circulating commemorative. Key specs, which double as your authenticity checklist:

• Metal: copper-nickel (cuproníquel). Not silver, not gold.
• Weight: 73.55 grams
• Diameter: 53.05 mm
• Edge: reeded (grooved)
• Year: 2010 only

Because it is copper-nickel, it has no bullion value. A silver or gold coin of the same size would be worth real money in melt alone. This one is not, so ignore anyone who tells you it is "solid silver worth thousands." It is not silver.

What it is worth in USD

Condition	Typical value (USD)
Circulated, worn	3 to 8 USD
Uncirculated (UNC), no wear	10 to 20 USD
Certified MS-65 or higher (NGC/PCGS)	25 to 45 USD

These are collector figures for a common modern issue. The face value alone (20 Mexican pesos) is roughly 1 USD. The premium above that is entirely about condition and whether a grading service has certified it.

There is no confirmed mintage figure published by Banxico for this exact issue, which usually points to a limited or set-based release rather than heavy circulation. Even so, these coins are not scarce enough to command high prices. Plenty change hands.

The "it must be worth a fortune" myth

Sites and social posts love to claim old or commemorative Mexican coins are worth thousands. For this piece, that is clickbait. Two things kill the fortune story:

1. It is copper-nickel. No precious metal, no floor.
2. It is modern (2010) and not rare. Age alone does nothing here, and 2010 is recent.

If you want Mexican coins that actually command serious money, look at older silver and gold issues, not this one. The genuinely valuable pieces are pre-1910 silver, gold Centenarios (the 50-peso gold coin), and scarce early republic types.

How to tell if yours is genuine

1. Weigh and measure it. A real one is exactly 73.55 grams and 53.05 mm. Off by more than a fraction and something is wrong.
2. Check the edge. It should be reeded (grooved), not smooth.
3. Look at the strike. Genuine coins have crisp, even detail. Blurry lettering or a mushy design suggests a cast fake.
4. Certify it if in doubt. For anything you think is high grade, NGC or PCGS certification is the definitive answer and also raises resale value.

Since this coin has no silver or gold, the classic "ping test" for silver does not apply. Copper-nickel has a duller ring by nature.

Where to sell it

Because values are modest, keep your selling costs low:

• Collector marketplaces and eBay: good for reaching US buyers directly. Post clear photos of both sides and the edge.
• Coin shows and local dealers: fast, in-person appraisal.
• Pesoteca community: connect with collectors of Mexican coins directly.

Don't overpay for grading on a coin worth 10 to 20 USD; certification fees can exceed the coin's value. Certify only if you have reason to believe it is a high MS grade.

Want to compare it with pieces that do command real prices? See other 20-peso Mexican coins, the full Bicentennial and Centennial series, and other coins from 2010.

Got one in hand and not sure of the grade? Post clear photos of the front, back, and edge in the Pesoteca forum and let collectors weigh in before you sell.