8 Reales Resplandor, Álamos Mint 1890: Value & Prices

If you inherited an 1890 Mexican 8 Reales with a sunburst and a Phrygian cap on one side and an eagle eating a snake on the other, here is the short answer: it is a real silver coin with a value floor set by its metal, and in worn condition it typically trades in the range of USD 20 to 40. Sharp, high-grade examples can bring more, especially with the Álamos mint mark, one of the scarcer mints in this series.

This is the classic "Resplandor" (Spanish for "sunburst" or "radiance"), named for the rays of sunlight behind the liberty cap on the front. Also called the "cap and rays" 8 Reales by English-speaking collectors, it was Mexico's workhorse silver dollar for most of the 19th century.

What it is

The 8 Reales was the standard large silver coin of the Mexican Republic, roughly the equivalent of a US silver dollar of the same era. This one was struck in 1890 at the Álamos mint, located in the state of Sonora, marked with an "As" or "A" mint mark on the coin. Mexico produced these at multiple mints, and each mint mark changes the desirability. Álamos is among the less common ones, which works in your favor.

Specifications (verify yours against these)

Feature	Detail
Denomination	8 Reales
Year	1890
Mint	Álamos (Sonora)
Metal	Silver, .900 fine (some references cite .9028)
Weight	27.07 grams
Diameter	39 mm
Edge	Reeded
Era	Restored Republic / Porfiriato

The front (obverse) shows the Phrygian liberty cap over sun rays with the word "LIBERTAD" (liberty). The back (reverse) shows the Mexican eagle facing forward, eating a serpent on a cactus, with "REPÚBLICA MEXICANA" around it. If your coin does not match these details, weight, and diameter, be cautious. Counterfeits of these silver 8 Reales are common.

What it is actually worth

At 27.07 grams of .900 fine silver, each coin contains roughly 0.78 troy ounces of pure silver. That gives it a melt floor that moves with the silver spot price. As a practical rule, a plain, worn example is worth its silver value plus a modest collector premium.

Value by condition, in USD:

Grade	Approximate value (USD)
Well worn (Good to Fine)	20 to 40
Lightly worn (VF to XF)	40 to 90
About Uncirculated	90 to 200
Uncirculated / Mint State (certified)	200 to 800+

These are ranges, not fixed prices. The exact figure depends on the silver spot price the day you sell, the sharpness of the strike, eye appeal, and whether the coin is certified by NGC or PCGS. Álamos-mint pieces in high grade are genuinely scarce and can exceed the top of this range at specialist auction. A common-mint, heavily worn example sits near melt.

Do not expect a "fortune" figure from social-media posts. These circulated by the millions across many years and mints. The value is real but grounded in silver and modest rarity, not in a headline number.

How to tell if yours is genuine

1. Weigh it. A real one is 27.07 grams. Use a jewelry scale. A coin that is significantly light or heavy is suspect.
2. Measure it. 39 mm diameter, reeded edge. Cast fakes often miss the exact dimensions.
3. Check the details. The engraving on the eagle's feathers and the sun rays should be crisp on a genuine strike. Mushy, soft detail can signal a cast counterfeit.
4. Be suspicious of any offer far below silver value. If someone will not let you see and weigh the piece, walk away.

For borderline cases, professional certification through a graded service settles both authenticity and grade in one step.

Where to sell

Start by photographing the obverse, reverse, and edge in good light, and match your coin to the ranges above. Then:

• A verified dealer from the Pesoteca shop directory will appraise it on the spot.
• The Pesoteca buy-and-sell forum connects you with collectors directly.
• For coins with genuine silver content, only deal with buyers who will show you the piece and its weight before money changes hands.

Avoid dumping it to the first buyer on a social feed. Check the grade first using the coin condition grading guide, and see where this piece sits in the broader Republic silver 8 Reales series.

Got one sitting in a drawer? Post clear photos on the Pesoteca forum and let collectors help you pin down the mint mark and grade before you sell.

In 1890 Porfirio Díaz governed during the middle Porfiriato. These were the years of the 1889 Paris Universal Exposition with a Mexican pavilion and of the consolidation of the railroad as a backbone of the economy.

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

As pieces are sought by collectors of the northwest and by those with a mining theme. Annual mintages were relatively low compared to Mexico City or Zacatecas.

As a catalog reference, the variant of this mint is listed as KM#377 in Krause. The piece is silver of .9028 fineness with a reeded edge and a theoretical weight of 27.07 grams. The 1890 example of Alamos, Sonora corresponds to the mature phase of the mint, close to its closing (1862-1895), and is identified on the coin by the As mint mark.

The collector who builds the series by mint usually hunts the As examples of the 1890s cycle in lots or peer-to-peer trades, avoiding the middleman resale. It's worth confirming that the piece has a weight close to 27 grams (striking tolerance) and a diameter of 39 millimeters. Pieces that resurface from local hoards appear periodically on the market and are the best window for obtaining high grade without overpaying.