1809 Mexican 8 Reales with Countermarks: Value & Silver

Most old Spanish colonial coins are worth their silver plus a modest collector premium, but the 1809 Mexico City 8 Reales carries real history in your hand. A common circulated example trades in the range of 50 to 150 dollars. Add genuine, identifiable countermarks and a high grade, and the same coin can climb into the hundreds or more.

If you inherited one of these heavy silver coins, here is the straight answer on what drives its value, how to tell if it is real, and where to sell it.

What you actually have

This is an 8 Reales, the famous "Spanish dollar" or "piece of eight" struck in Mexico City (then Nueva España, colonial New Spain) in 1809 under Spanish rule. It was the world's trade coin for centuries and circulated everywhere from China to the early United States.

The hard specs, which never change:

• Metal: silver, .900 fine (90 percent pure silver)
• Weight: 26.15 grams
• Diameter: 38 mm
• Edge: incuse (patterned, not smooth)
• Mint: Mexico City (Casa de Moneda de México)
• Assayer: TH
• Date: 1809

The countermarks (in Spanish, resellos or contramarcas) are the key feature here. These are small stamps punched into the coin after it left the mint, applied by another government or authority to approve the coin for circulation in their territory. A countermarked 8 Reales tells you where the coin traveled after 1809.

What it is worth

Value splits into two parts: the silver floor and the collector premium.

Silver floor. At 26.15 grams of .900 silver, the coin contains roughly 0.756 troy ounces of pure silver. That sets a hard bottom under the price that moves with the silver spot market. No genuine example sells below its melt value.

Collector premium. This is where the range widens. Grade, eye appeal, and the specific countermark decide the number.

Type	Condition	Typical value (USD)
1809 8 Reales, no countermark	Worn (Good to Fine)	40 to 90
1809 8 Reales, no countermark	Higher grade (XF to AU)	100 to 300+
1809 8 Reales, common countermark	Any grade	60 to 200
1809 8 Reales, rare/documented countermark	Verified	Several hundred to 1,000+

The ranges are honest, not exact quotes, because a countermarked coin is only as valuable as the market's ability to identify the mark. A generic worn stamp adds little. A verified countermark from a documented issuing authority (some Asian or Caribbean marks are collected in their own right) can add serious money on top of the base coin.

The countermark myth

A countermarked silver coin looks damaged to an untrained eye, and some sellers dump them cheap. Others swing the opposite way and claim any stamp makes the coin "priceless." Neither is true.

What matters is whether the countermark is genuine and identifiable. Fake countermarks added later to boost value are common. A real, attributable mark from a known issuing authority adds a premium; an unreadable or fabricated one adds nothing and can actually hurt the sale.

How to tell if yours is genuine

Start with the physical checks, since counterfeits usually fail on weight and dimensions.

1. Weigh it. A genuine coin is 26.15 grams. Anything meaningfully lighter or heavier is a red flag.
2. Measure it. 38 mm across.
3. The ping test. Balance the coin on a fingertip and tap it gently. Real .900 silver rings with a clear, sustained high tone. Fakes made of base metal or plated copies sound dull and short.
4. Look at the edge. It should be incuse (patterned), not smooth or seamed.

These tests catch obvious fakes but not skilled ones, and they do not tell you if a countermark is authentic. For a coin worth more than a couple hundred dollars, professional grading is the only real insurance. Send it to NGC or PCGS, the two major US grading services. A certified coin in a sealed holder sells faster and for more, and their experts will confirm both the coin and the countermark.

Where to sell it

You have a few solid options in the US market:

• Established coin dealers. A reputable dealer will appraise it on the spot. World and colonial coins are a specialty, so look for one who handles them.
• Major auction houses. For a rare countermark or a high grade, Heritage Auctions or Stack's Bowers reach the collectors who pay the most for colonial silver.
• Collector marketplaces. Vetted numismatic groups and forums put you in front of buyers who understand what a countermark is worth.

Wherever you sell, photograph the obverse, the reverse, and the edge in good light, and note the exact weight. Buyers of precious-metal coins expect to verify before paying, and clear photos of the countermark are what separate a low offer from a strong one.

Avoid selling for melt value alone unless the coin is badly worn. A common online marketplace is also where the most counterfeits circulate, so if you buy or trade there, insist on edge and weight photos.

Related pages

This coin belongs to the 8 Reales colonial series. You can also browse the wider Colonial / Viceroyalty era, other Mexican 8 Reales, and other coins dated 1809.

Got one of these in a box of inherited coins and not sure if the countermark is real? Post clear photos of both sides and the edge in the Pesoteca forum and let collectors who know colonial silver take a look before you sell.

This piece belongs to the category of counterstamps and countermarks applied to already-struck pieces of eight, a practice used by both insurgents and royalists during the War of Independence.

The government of New Spain in 1809 was in the hands of Pedro de Garibay and then Francisco Javier de Lizana y Beaumont, interim governments during the dynastic crisis.

The piece belongs to the category of counterstamps and countermarks, punches applied to already-struck pieces of eight to officially revalidate them, move them to another jurisdiction, or mark them with an insurgent or royalist symbol. Each counterstamp carries a political reading: the crowned M of Morelos, the Zongolica seal, the M.V.A., and other families documented by colonial catalogs.

The declared minting origin is: counterstamp on a previously struck piece of eight. The TH initials accompanying the counterstamp identify the official or commander who authorized the remarking of the prior piece.

The Krause catalog references this piece under KM#200, useful for cross-checking the entry against international auction listings.

A year of provisional issue during the dynastic crisis, with the Mexico City mint continuing its work under interim authorities.