8 Reales Álamos 1887 (Resplandor): Value & Silver Content

If you inherited an old Mexican 8 Reales dated 1887 with a small "As" or "Ao" mint mark, here is the honest answer: it is real silver, so it will never be worth less than its melt value, and in 2026 that puts a solid floor under it. The Álamos mint version is scarcer than the common Mexico City strikes, and clean, high-grade examples sell for a meaningful premium over their silver weight.

This is the coin US collectors call the "cap and rays" 8 Reales. The Spanish name is Resplandor, which just means the sunburst of rays behind the Phrygian cap on the front. It is one of the most recognized silver coins Mexico ever made, and it circulated worldwide as trade silver.

What you actually have

The 1887 Álamos 8 Reales is a large silver crown-sized coin. The specifications are fixed, so you can verify yours against a scale and a caliper.

Spec	Detail
Denomination	8 Reales
Year	1887
Mint	Álamos (mint mark "As" or "Ao")
Metal	Silver .900 fine
Weight	27.07 grams
Diameter	39 mm
Edge	Reeded
Era	Restored Republic / Porfiriato

Each coin contains roughly 24.4 grams of pure silver, about 0.783 troy ounces. That silver content is your value floor. Even a worn, damaged, or cleaned example is worth at least what the metal sells for on any given day.

How much is the 1887 Álamos 8 Reales worth?

Value splits into two parts: the silver floor and the collector premium. A heavily circulated, dinged example trades close to melt, meaning whatever 0.783 troy ounces of silver is worth that week. A clean, problem-free coin with good detail sells for a premium over that. A high-grade certified example (graded MS by NGC or PCGS) is where the real money is, and Álamos strikes are genuinely scarcer than Mexico City (Mo) coins of the same date.

As a working range in 2026:

• Well-worn / damaged: melt value, a modest premium over the silver spot price.
• Clean circulated (VF to XF): a solid premium over melt, typically several times the raw metal on scarcer mints like Álamos.
• Uncirculated / certified MS: the strongest money, where scarcity, eye appeal, and grade compound. Top-grade cap-and-rays 8 Reales from smaller mints can reach the low four figures in USD.

The exact number depends on grade, the mint mark, the assayer's initials, and the silver spot price the day you sell. There is no single fixed price, and any site quoting one flat figure is guessing.

What drives the premium

Three things separate a melt-value coin from a collector coin:

1. Mint. Álamos was a smaller mint than Mexico City, so surviving 1887 Álamos coins are fewer. Scarcity is the main premium driver here.
2. Grade. Original surfaces and sharp detail matter enormously. A cleaned or polished coin loses most of its collector premium, even if it looks shiny to you. Cleaning hurts value.
3. Assayer variety. These coins carry the assayer's initials next to the value. Certain year-mint-assayer combinations are rarer than others and pay more.

The myth to kill

"It's over 130 years old, so it must be worth a fortune." Age alone means almost nothing here. The cap-and-rays 8 Reales was minted in enormous numbers across many mints from the 1820s into the 1890s, and millions survive. A common, worn example is a silver coin worth its metal, not a rarity. The value comes from the specific mint, the grade, and demand, not the calendar.

How to tell if yours is genuine

Counterfeits of silver 8 Reales exist, both period contemporary fakes and modern cast copies. Check these before you buy or sell:

• Weigh it. A genuine coin weighs 27.07 grams. Use a jewelry scale. A coin that is notably light or heavy is a red flag.
• Measure it. Diameter should be 39 mm. Use a caliper.
• Check the edge. It should be reeded (fine vertical grooves), not smooth or seamed. A visible seam around the rim signals a cast fake.
• Silver test. Silver is non-magnetic and has a distinct ring. A magnetic "silver" coin is fake.
• Detail quality. Look at the eagle, the cap, the rays, and the lettering under magnification. Mushy, soft, or blurry detail suggests a cast copy.

If anything is off, or if a deal is priced far below the silver value, walk away. For a coin like this, certification by NGC or PCGS removes the doubt entirely and usually pays for itself on the sale.

Where to sell it

Sell where buyers know the series and pay fairly:

• A verified numismatic dealer from the Pesoteca directory, searchable by city, who will value it on the spot and pay a fair price for silver.
• The Pesoteca buy-and-sell forum, where collectors trade directly and scarcer mints get proper attention.

Before selling, photograph the obverse, reverse, and edge in good light, and confirm the grade against our grading guide. Do not dump it at a pawn shop or accept the first offer on social media. Because it is precious metal, only deal with someone who will show you the coin and its weight, and verify before you pay.

This coin belongs to the broader silver 8 Reales of the Mexican Republic series, one of the most collected areas of Mexican numismatics.

Have an 1887 8 Reales and not sure which mint or grade you have? Post clear photos of both sides and the edge in the Pesoteca forum and let collectors who know the Álamos strikes weigh in before you sell.

In 1887 Porfirio Díaz governed in his second consecutive term. Years of railway expansion (Mexico City-Ciudad Juárez, Mexico City-Laredo) and of consolidation of foreign capital in mining and industry.

The Álamos 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 the Porfirian centralization concentrated the striking in Mexico City and Zacatecas.

The As pieces are sought by collectors of the northwest and by mining-themed 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 1887 Álamos, Sonora example corresponds to the mature phase of the mint, near its closure (1862-1895) and is identified on the coin by the As mint mark.

When hunting down cap-and-rays 8 reales from As, it is worth comparing against the photographic reference in the Pesoteca catalog and prioritizing examples with a legible reverse (eagle, serpent, legend REPÚBLICA MEXICANA and value 8R) over pieces with only a bright obverse. The par-to-par price among collectors of the 1880s cycle is usually fairer than the specialized shop's display case, where a middleman's markup can double the real reference.