1/8 Real Copper Coin, 1822 First Mexican Empire

Most copper coins from Mexico's First Empire trade for a few dollars in worn condition. A clean, well-struck 1822 copper 1/8 real can climb into the low hundreds of dollars, and the rarest die varieties in high grade go higher. The value hinges on condition and whether the design is fully legible, not on age alone.

If you inherited or found an old, small brown coin marked with a fraction and the year 1822, this page tells you what it is, whether it's rare, what it's worth in US dollars, and where to sell it safely.

What this coin actually is

This is a 1/8 real (one-eighth of a real, a fractional denomination used in colonial and early independent Mexico). It was struck in 1822, during the short-lived First Mexican Empire under Agustín de Iturbide, the brief monarchy that followed independence from Spain.

It is a base-metal coin, not silver or gold, so there is no bullion floor pulling its price up. Its entire value comes from collector demand, condition, and rarity.

Specifications

Feature	Detail
Denomination	1/8 real
Year	1822
Metal	Copper
Weight	2.87 grams
Diameter	16 millimeters
Edge	Plain (smooth)
Era	First Mexican Empire

Because it is copper and only 16 millimeters across, this is a small, easily overlooked coin. Many surviving examples are heavily worn or corroded, which is exactly why a sharp, problem-free piece stands out.

What it's worth in USD

Value is driven by grade (how worn the coin is) and by originality of surface. Honest ranges for the 1822 copper 1/8 real:

Condition	What it looks like	Approximate value (USD)
Heavily worn / corroded	Design barely readable, pitting or damage	A few dollars
Circulated, legible	Clear date and design, honest wear	15 to 60 dollars
Choice / lightly worn	Sharp detail, clean brown surfaces	75 to 200+ dollars
Uncirculated	Full strike, original surfaces, scarce	Several hundred dollars

These are collector ranges, not guarantees. Two coins of the same year can differ by 10x in price purely on condition and eye appeal. Copper is also unforgiving: cleaning, corrosion, and rim damage can wipe out most of a coin's value.

If someone tells you this coin is worth thousands just because it's from 1822, treat that with skepticism. Age is common; high grade and clean copper are what buyers actually pay for.

Is it rare?

Fractional copper from 1822 is genuinely scarce in high grade, but common in low grade. That distinction matters. A worn, corroded example is not a rare coin in any meaningful sense, plenty exist. A crisp, uncirculated example with original surfaces is a different story and commands a strong premium.

Die varieties also exist across the series. If your example shows an unusual style or an uncommon variety, it can be worth more, but confirming that requires expert eyes.

Does it have valuable minting errors?

Genuine mint errors (off-center strikes, die rotation, double strikes, verified varieties) can multiply a coin's value. The catch: most "errors" people spot online are actually post-mint damage, dents, corrosion, or environmental wear, not factory errors. Old copper takes a lot of abuse over 200 years.

If you think yours has a real error, don't assume, verify. Post clear photos in the Pesoteca community forum and let experienced collectors weigh in before you value it as an error coin.

How to tell if yours is genuine

Counterfeits of early Mexican coinage are common, so check the basics before you get excited:

1. Weigh it. Use a jewelry scale. It should be close to 2.87 grams. A big deviation is a red flag.
2. Measure it. Use calipers. Diameter should be about 16 millimeters.
3. Study the strike. Compare the engraving style, mint mark, and assayer initials against verified references. Cast fakes often show soft, mushy details and seam lines on the edge.
4. Check the edge. It should be plain (smooth), consistent with the original spec.

When in doubt, get it authenticated. For a coin that might be worth a few hundred dollars, third-party grading from a recognized service is worth considering, since it settles both authenticity and grade for a buyer.

Where to sell it

To sell the 1822 copper 1/8 real without getting shortchanged:

• A verified coin shop from the Pesoteca dealer directory, which can appraise it on the spot.
• The Pesoteca buy-and-sell forum, where you deal directly with collectors who know the series.

Before you sell, photograph the coin clearly (front, back, and edge) and compare it against the value ranges above. Avoid dumping it to the first buyer on social media, and avoid resellers who lowball inherited coins from people who don't know what they have.

Want a second opinion on your specific piece? Post your photos in the Pesoteca forum and get it graded by collectors before you decide to keep it or sell.