Mexico 8 Reales Álamos 1885 (Resplandor): Value & Guide

If you inherited an 1885 Mexican 8 Reales with an "As" mint mark, here is the honest answer: in worn condition it is worth roughly USD 25 to 45, mostly for its silver. A clean, sharp example can bring several hundred dollars because the Álamos mint made far fewer coins than the big Mexico City operation. That scarcity, not age, is what moves the price.

The 8 Reales was the classic Mexican "piece of eight," the silver dollar that circulated worldwide for centuries. This particular one is the Resplandor type (Spanish for "radiance," named for the radiant Phrygian cap on the design), struck in 2026's terms as a KM#377 catalog coin. The "As" mint mark tells you it came from Álamos, a mining town in the state of Sonora in northwest Mexico.

What it is, in plain terms

Spec	Detail
Denomination	8 Reales
Year	1885
Mint	Álamos (mint mark "As"), Sonora
Catalog	KM#377
Metal	Silver, .9027 fine
Weight	27.07 grams
Diameter	39 mm
Edge	Reeded
Pure silver content	about 24.4 grams (0.786 troy oz)

The design shows a radiant Phrygian cap over the word LIBERTAD on one side, and the Mexican eagle on a cactus, holding a snake, on the other. That eagle image had been on Mexican silver since 1823, which is why so many people assume these coins are "ancient" and therefore priceless. They are not ancient, and most are not rare.

What drives the value

Four things, in order: silver content, mint mark, grade, and originality.

Silver is the floor. With roughly 0.786 troy ounces of pure silver, this coin can never be worth less than its melt value. As of recent silver prices that floor sits in the USD 20 to 25 range. Any offer below that is a bad offer.

The Álamos mint is the reason a collector pays a premium. Álamos served the silver-mining economy of the northwest and produced in much smaller numbers than Mexico City or Zacatecas. Coins from smaller regional mints in a given year survive in fewer numbers, and that is what collectors chase.

Grade decides everything above melt. A coin worn smooth from decades in circulation is a silver-bullion coin with a small collector bump. A coin with sharp detail in the cap rays and the eagle's feathers, and clean fields with no scratches or harsh cleaning, is where prices climb into the hundreds.

Originality matters more than shine. A coin that has been polished or dipped to look "new" is worth less to a serious buyer than a naturally toned original. Do not clean it. Cleaning destroys value.

Realistic value ranges (USD)

Condition	What you'll typically see
Heavily worn (melt-driven)	USD 25 to 45
Moderately circulated, clear detail	USD 60 to 150
Lightly circulated, sharp	USD 200 to 400
Uncirculated / high grade, certified	several hundred to low four figures

These are ranges, not guarantees. The exact number depends on the specific coin in hand, its assayer initials, and current demand. A certified grade from NGC or PCGS is what separates a guessed price from a real one.

The myth: "old Mexican silver dollar, must be worth a fortune"

We see this weekly. Someone inherits a jar of 8 Reales and expects retirement money. The reality: the vast majority of surviving 8 Reales, especially the common Mexico City dates, are worth silver value plus a modest premium. Age alone does not create value. A coin from 1885 that millions of people saved is common; a coin from a small mint in a scarce year that few saved is not. Your 1885 Álamos leans toward the scarcer side, which is good news, but "scarce" means hundreds of dollars for a nice one, not thousands, unless it is a top-grade certified example.

How to tell if yours is genuine

Counterfeits of Mexican silver exist, both period fakes and modern ones. Check these before you do anything else:

• Weigh it. A jeweler's scale should read close to 27.07 grams. A significantly light coin is a red flag.
• Measure it. Diameter should be about 39 mm with a reeded (grooved) edge.
• Do the magnet test. Silver is not magnetic. If it sticks to a magnet, it is fake.
• Look at the mint mark and assayer initials. Genuine Álamos coins carry the "As" mark. Study the engraving style; crude, mushy lettering suggests a cast copy.
• Be suspicious of any offer far below melt. If a seller is unloading it cheap, ask why.

For real certainty, submit it to a third-party grading service or have it examined by a verified dealer. Photos of the obverse, reverse, and edge let the community weigh in too.

Where to sell it

Your goal is to beat melt value without getting lowballed. Options that work:

• A verified numismatic dealer, who can appraise it on the spot. Use the Pesoteca dealer directory to find one and compare offers rather than accepting the first.
• The Pesoteca buy-and-sell forum, where collectors pay collector prices, not pawn-shop prices.
• For a high-grade example, getting it certified by NGC or PCGS first typically pays for itself, because buyers trust a graded coin and bid higher.

Avoid dumping it on a general marketplace to the first bidder, and never sell precious metal without confirming the weight and seeing the coin in hand. If you want to understand the broader series before you sell, our guides on Mexican silver coins and the Resplandor 8 Reales type put your piece in context.

Got an 1885 Álamos or another regional-mint 8 Reales? Post clear photos of both sides and the edge in the Pesoteca forum and let collectors who know the Álamos dies tell you what you actually have.

In 1885 Porfirio Diaz ruled in his second continuous term. Years of railroad expansion (Mexico City-Ciudad Juarez, Mexico City-Laredo) and of the consolidation of foreign capital in mining and industry.

The Alamos mint (As) reopened in 1862 during the French Intervention to provide liquidity to the silver mining region of southern Sonora. It worked until 1895 when Porfirian centralization concentrated minting in Mexico City and Zacatecas.

As pieces are sought by collectors of the northwest and by mining-theme collectors. Relatively low annual mintages compared to Mexico City or Zacatecas.

For catalog reference, this mint's variant is listed as KM#377 in Krause. The piece is .9028 fineness silver with a reeded edge and a theoretical weight of 27.07 grams. The 1885 Alamos, Sonora example corresponds to the phase in the mint's middle stage (1862-1895) and is identified on the coin by the mint mark As.

To hunt this As piece without paying a markup, check both regional fairs and professional auction listings. Examples from the 1880s cycle in As have enough supply to compare edges, original shine and dot spacing among 3 or 4 options before closing. Verify the absence of filing on the edge and that the resplandor of the Phrygian cap is not weak from wear; both are marks of circulated examples presented as higher quality.