8 Reales Columnario Felipe V 1733-1747 (Pillar Dollar)

If you inherited an old Spanish-Mexican silver coin with two columns on the back, you may have a Columnario, known to US collectors as the Pillar Dollar. The 8 Reales Felipe V struck at Mexico City from 1733 to 1747 typically sells from around 150 USD in worn condition to several thousand dollars for sharp, high-grade examples. This is a genuine collectible with real silver content, not a wall-hanger replica (though plenty of fakes exist).

Here is what yours is worth and how to check it.

Quick answer: what it's worth in 2026

The Felipe V Pillar Dollar is one of the more common types in the Columnario series, which keeps most examples affordable. Value depends almost entirely on wear (grade), the specific date, and whether it's a rare overdate variety.

• Heavily worn (Good to Fine): roughly 100 to 250 USD.
• Moderate wear (Very Fine): roughly 250 to 600 USD.
• Light wear (Extremely Fine): roughly 600 to 1,500 USD.
• Mint State or near-uncirculated: 2,000 to 5,000+ USD, especially for scarce dates.

A badly cleaned, scratched, or corroded piece drops toward its silver melt value, which is still meaningful because the coin holds about 0.78 troy ounces of pure silver.

What this coin actually is

Columnario means "pillar coin." The reverse shows two crowned columns (the Pillars of Hercules) flanking two globes over waves, a design that made this the most recognized silver trade coin in the Americas. It was the first Mexican 8 Reales struck by machine press ("a molino"), replacing the crude hand-struck cob coinage called macuquina.

Specifications (verify yours against these):

• Weight: 27.07 g
• Diameter: 38 mm
• Fineness: silver, approximately 0.900
• Mint: Mexico City (mintmark Mo)
• Assayers: MF (Manuel de León and Francisco de la Peña y Flores)
• Denomination: 8 Reales

The series ended in 1747 when Felipe V died and Fernando VI took the throne, which is why 1747 is the cutoff for this type.

Value by grade

These are market ranges. A common date in Very Fine sits at the low end; a scarce date or an exceptional strike pushes toward the top.

The overdates: where the real money can be

Several dates in this run are overdates, meaning the die was re-engraved from a previous year and you can see the older digit underneath. Documented overdates include:

1733/2, 1738/7, 1739/8, 1740/39, 1742/1, 1744/3, and 1746/5.

A genuine, verifiable overdate can carry a premium over the same date without the overdate feature, sometimes substantially, because specialists chase them. If you look closely at the date and see a faint ghost of a different digit, get it authenticated before you sell. Do not assume it, and do not let a buyer talk you out of it either.

Silver content sets the floor

Because this coin is roughly 0.900 fine silver at 27.07 g, it contains about 0.78 troy ounces of pure silver. That gives it a baseline melt value no matter how worn it is. As a collectible, though, even a low-grade authentic Columnario is worth well above melt to a numismatist, so never sell one for scrap price. Anyone offering you only melt value is undervaluing it.

How to tell if yours is genuine

Counterfeits of Pillar Dollars are common, both old contemporary fakes and modern reproductions.

1. Weigh it. Use a jeweler's scale. It should be close to 27.07 g. A light or overweight coin is a red flag.
2. Measure it. Diameter should be about 38 mm.
3. Check the edge. Genuine milled coins have a decorated (tulip/floral) edge design, not a plain or reeded modern edge.
4. Study the engraving. Look at the mintmark (Mo), the assayer letters (MF), and the overall style. Cast fakes look soft, mushy, or grainy in the fields.
5. Be suspicious of a bargain. Any offer far below the silver value is either a fake or a trap.

For anything you plan to sell above a few hundred dollars, third-party grading from NGC or PCGS is worth it. A certified, slabbed coin sells faster and higher because the buyer trusts the authentication.

Where to sell it

• Verified coin dealers. Browse the Pesoteca dealer directory to find a shop that will appraise and buy on the spot. Get more than one quote.
• Collector marketplace. The Pesoteca buy-and-sell forum puts you in front of collectors who actually want this series, which usually beats a dealer's buy price.
• Major auction houses. For a high-grade or rare overdate, Heritage Auctions and Stack's Bowers regularly sell Mexican colonial silver to a worldwide bidder base.

Photograph the obverse, reverse, and edge in good light before you list or ask for offers. Avoid dumping it on a general social-media sale to the first buyer; colonial silver is easy to underprice if you don't know what you have.

Want a second opinion on your date, grade, or a possible overdate? Post clear photos in the Pesoteca forum and let collectors who specialize in Columnarios weigh in before you sell.

Felipe V reigned 45 years (1700-1746), the longest reign of the Hispanic monarchy. The pillar coinage stabilized colonial money by replacing the crude cob (macuquina) with a regular piece, of laureate edges and uniform design. The reverse shows two crowned hemispheres (Old World + New World) flanked by the columns of Hercules with the motto PLVS VLTRA. The piece became the standard of world trade: it circulated from Manila to Philadelphia and was the basis of the United States silver dollar. The Pillar series as a whole was struck at the Mexico Mint (Mo mint mark) between 1732 and 1772 under three monarchs: Felipe V, Fernando VI, and Carlos III. It is considered the monetary standard of eighteenth-century world trade for its purity and consistency. The Mexican pieces circulated in Asia (with frequent Chinese chopmarks over the die), in the Thirteen North American Colonies (they served as the basis of the U.S. dollar), and throughout Europe. Today they are a central object of world numismatic collecting, especially for their role as precursor of the international Spanish Dollar / Pillar Dollar.