8 Reales Resplandor, Álamos Mint 1883

If you have an 1883 8 Reales with a radiant cap on the back and the letters "As" for a mint mark, you own a genuine silver coin worth at least its metal value, and potentially several times more in good condition. This is the Álamos mint issue, and here is what actually drives its price in 2026.

Quick answer: what is it worth?

The 8 Reales "Resplandor" struck at Álamos, Sonora in 1883 (catalog KM#377) is a large silver coin containing 24.44 grams of pure silver. That gives it a hard floor at melt value, so it is never worth just a few dollars. Beyond the silver, condition is everything:

• Circulated, worn (Good to Fine): roughly melt value to a modest premium, commonly in the range of a few tens of dollars up to around 60 USD depending on the spot price of silver.
• Lightly circulated (Very Fine to Extremely Fine): typically 75 to 200 USD, as the collector premium starts to matter.
• Uncirculated / Mint State (AU-58 and up): 250 USD to 800 USD or more for a sharp, original example. Well-struck Mint State pieces from the smaller Álamos mint are genuinely scarce and command the top figures.

The Álamos mint (mint mark "As") produced far fewer coins than Mexico City, which is exactly why collectors of Mexican Republic silver pay attention to it. A common-looking coin from a scarce mint can be worth several times a common coin from a common mint.

What the coin actually is

"8 Reales" was the workhorse silver denomination in 19th-century Mexico, the direct descendant of the Spanish colonial "piece of eight." It circulated worldwide, and Mexican silver pesos were accepted across Asia and Europe because of their reliable fineness.

The nickname "Resplandor" (Spanish for radiance or sunburst) comes from the radiant Phrygian cap on the reverse, a symbol of republican liberty. The obverse shows the Mexican eagle. On this issue you will find the mint mark "As" for Álamos and an assayer's initial next to the value.

Specifications

Feature	Detail
Denomination	8 Reales
Year	1883
Mint	Álamos, Sonora (mint mark As)
Catalog	KM#377
Metal	Silver, .9027 fine
Weight	27.07 grams
Pure silver content	24.44 grams (about 0.786 troy oz)
Diameter	39 mm
Edge	Reeded

Why condition and mint matter more than age

Age alone does not make a coin valuable. Millions of 8 Reales were struck across Mexico in the 1800s, so a heavily worn example is worth close to its silver. What lifts the price is the combination of a scarcer mint (Álamos), a sharp strike, and original surfaces that have not been cleaned or polished.

Collectors of Mexican Republic silver look closely at three things: the crispness of the sunburst and cap on the reverse, the readability of the legend, and the integrity of the reeded edge. A coin that has been cleaned with abrasives loses much of its collector premium even if it looks brighter, because cleaning leaves hairline scratches that graders and buyers spot immediately.

The myth to ignore

Online sellers sometimes claim any old Mexican silver coin is worth thousands. For a common circulated 1883 8 Reales, that is not true. The realistic ceiling for a normal Álamos example is in the hundreds of dollars, reached only in high grade. The exceptions are certified Mint State pieces or genuine, verifiable minting errors (see below), not average coins from a shoebox.

How to check what yours is worth

1. Weigh and measure it. Use a jewelry scale and a caliper. A genuine coin should be very close to 27.07 grams and 39 mm. Anything far off is a warning sign.
2. Confirm the mint mark. Look for "As" for Álamos. The mint mark changes the coin's identity and value, so read it carefully under magnification.
3. Grade the condition honestly. Compare the wear on the eagle and the sunburst to online grading photos. Original color and sharp detail move you toward the higher price range.
4. Consider certification. For a coin you believe is Uncirculated or unusually sharp, third-party grading by NGC or PCGS both authenticates it and typically raises its resale value.
5. Watch for fakes. Colonial and early republican 8 Reales are among the most counterfeited coins in the world. Be suspicious of any coin that is off-weight, has a mushy or lettered edge, or is offered well below its silver value.

For authenticating tricky pieces, our guide to spotting fake Mexican silver coins is a good next step, and you can post photos of the obverse, reverse, and edge for the community to review.

Where to sell or buy

Because this is a precious-metal coin, sell only where the piece and its weight can be verified in front of you. A verified numismatic dealer from the Pesoteca directory will appraise it on the spot, and the Pesoteca buy-and-sell forum connects you directly with collectors. Photograph the obverse, reverse, and edge, and check the value range above before you accept an offer. Avoid dumping it to the first bidder on a social-media marketplace.

If you have a box of mixed pieces, our overview of the most valuable Mexican coins in 2026 will help you spot which ones are worth grading first.

Got an 1883 8 Reales in hand and not sure which mint or grade it is? Post clear photos on the Pesoteca forum and let collectors help you pin down its value before you sell.

In 1883 Manuel Gonzalez, a close friend of Porfirio Diaz, was in office during the 1880-1884 term. It was a period of financial crisis and of debate over nickel as fractional currency.

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.

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

For catalog reference, this mint's variety 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 1883 Alamos, Sonora example corresponds to the middle stage of the mint (1862-1895) and is identified on the coin by the As mint mark.

When hunting for an As 8 reales resplandor, 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 peer-to-peer price among collectors of the 1880s cycle tends to be fairer than the showcase of a specialty shop, where a middleman's markup can double the real reference.