8 Reales Oaxaca 1880: Silver Value & How to Sell

If you inherited or found an 1880 Mexican 8 Reales from the Oaxaca mint, here is the straight answer: it is a real silver coin with a guaranteed floor value at melt (roughly 0.783 troy ounces of pure silver), and a better collector price when the details and grade line up. In 2026, most circulated examples trade in the tens of dollars, driven mostly by silver content, while sharp, high-grade pieces climb well beyond that.

This is not a coin that turns into a lottery ticket. But it is genuine hard silver, and that puts a real number under it that most old coins never have.

What this coin actually is

The "8 Reales" was Mexico's workhorse silver dollar for most of the 1800s, the direct descendant of the Spanish colonial piece of eight. This one is the Resplandor type, named for the burst of solar rays (the "resplandor") behind the Phrygian cap of liberty on one side.

Here are the exact specifications, and they matter for both value and authentication:

• Denomination: 8 Reales
• Year: 1880
• Mint: Oaxaca (a smaller Mexican mint, which affects rarity)
• Metal: Silver, .900 fine (also cited as 0.9028 under the republican standard)
• Weight: 27.07 grams
• Diameter: 39 mm
• Edge: Reeded
• Era: Restored Republic and Porfiriato

Obverse: Phrygian cap over a burst of solar rays with the word "LIBERTAD."

Reverse: The Mexican republican eagle facing forward, devouring a serpent on a cactus, with the legend "REPÚBLICA MEXICANA."

The .900 silver content is the key figure for a US owner. At 27.07 grams of .900 silver, the coin holds about 24.4 grams (roughly 0.783 troy ounces) of pure silver. That is the melt floor: the coin is never worth less than that, whatever its condition.

What it's worth in 2026

Value on this piece comes from three things, in this order: silver content, condition (grade), and the specific mint and year combination. Oaxaca was a smaller mint than Mexico City or Zacatecas, so certain dates from Oaxaca carry a premium with collectors of mint-and-assayer varieties.

Grade / condition	What it looks like	Approximate value (USD)
Heavily worn (Good/VG)	Flat details, readable but soft	Near melt, about 20 to 30
Circulated (Fine/VF)	Full design, honest wear	30 to 70
Lightly circulated (XF/AU)	Sharp details, little wear	70 to 200
Uncirculated (MS)	No wear, original luster	200 and up, more for scarce varieties

These ranges track the silver market. When the silver spot price rises, the floor rises with it, so an approximate figure is always tied to the metal on the day you sell. High-grade Oaxaca examples with strong strikes and clean surfaces are where the real premiums sit, especially certified by a grading service.

The myth to ignore

A common belief is that any 1800s coin is automatically worth thousands. For a standard, worn 8 Reales, that is not true. Millions of these circulated across Mexico, Asia, and the Americas as trade dollars, so worn examples are common and priced close to their silver. The premium comes from grade and scarce mint/date combinations, not age alone. Treat any listing promising a fortune for an average circulated piece with skepticism.

How to tell if yours is genuine

Colonial and republican silver like this is faked, so check the physical numbers first:

1. Weigh it. A jewelry scale should read very close to 27.07 grams. A light coin is a red flag.
2. Measure it. Diameter should be about 39 mm, with a reeded (grooved) edge.
3. Check the strike. Genuine dies produce crisp, defined lettering. Cast fakes look soft, grainy, or have a seam on the edge.
4. Verify the mint mark and assayer. These small marks should match documented Oaxaca 1880 varieties. Odd or mismatched marks suggest a problem.
5. Be suspicious of bargains. Any offer well below the coin's silver value is almost always a fake or a trap.

For a full walk-through, see our guide to coin grading, and compare your coin against the wider 8 Reales silver series.

Where to sell it

Because this is precious metal, sell it where the piece is examined in person or with clear photos, not to the first Facebook buyer:

• A verified numismatic dealer from the Pesoteca shop directory can appraise and buy it on the spot, without a middleman markup.
• The Pesoteca buy-and-sell forum (foro/compra-venta) puts you in front of collectors who pay for grade, not just melt.

Photograph the obverse, reverse, and edge before you sell, and confirm the weight so a buyer can verify the silver.

Have an 1880 Oaxaca 8 Reales in hand and want a second opinion on the grade? Post clear photos on the Pesoteca forum and let collectors weigh in before you sell.

In 1880 Porfirio Díaz governed in his first presidential term. It was a consolidation of the Porfirian order with an emphasis on pacification, railroads and foreign capital.

The Oaxaca mint (Oa) reopened in 1858 during the War of Reform to provide currency to the south. It closed in 1893 in the centralizing reform prior to the late Porfiriato.

Oa pieces are hunted by collectors of short-lived mints. Its early closure (1893) makes years like 1892-1893 particularly scarce.

As a catalog reference, the variant of this mint is listed as KM#377.11 in Krause. The piece is silver of .9028 fineness with a reeded edge and a theoretical weight of 27.07 grams. The 1880 example from Oaxaca corresponds to the middle phase of the mint (1858-1893) and is identified on the coin by the mint mark Oa.

In the Mexican numismatic market the Oa-1880 radiant peso appears regularly at auction and at central-region markets. When hunting it, it's advisable to verify a clean reeded edge, without clipping, and that the Oa mint mark is sharp. Before paying a middleman's premium, consult the reference range by grade in public catalogs and on the Pesoteca forum; many examples from this decade (1880s) can be obtained at par price without speculative intermediaries.