Pillar Dollar: Felipe V 8 Reales Columnario (1732-1733)

If you inherited an old, heavy silver coin from Mexico with two columns and a pair of globes over ocean waves, you may be holding a Felipe V 8 Reales Columnario, dated 1732 or 1733. This is a genuinely important coin. Depending on condition, examples sell from a few hundred dollars up into six figures at major auctions.

The 1732 issue is the first year of the type, and first-year Pillar Dollars are the most sought-after. That makes the difference between "worth a few hundred" and "worth tens of thousands" almost entirely a matter of grade and authenticity. Here is what yours actually is, what it's worth, and how to verify it before you sell.

What you actually have

The coin American collectors call the Pillar Dollar is the 8 reales columnario. "Columnario" refers to the two Pillars of Hercules that frame two globes (representing Spain's dominions on both sides of the Atlantic) over ocean waves. It was struck at the Mexico City Mint (the Casa de Moneda de México), which is why you'll see the Mo mint mark. The F is the assayer's initial.

This was the first Mexican coin struck by screw press (a mechanical volante), authorized by Felipe V in 1728 to replace the crude hand-hammered macuquinas (cob coinage). The result was a round, well-made coin that circulated worldwide and became a trade standard in the Americas, Europe, and Asia.

Technical specs (check yours against these)

If your coin's weight is far off from 27 grams or the edge is plain and smooth, treat it with suspicion. Counterfeits of this type are common.

What it's worth in 2026

The silver alone gives this coin a floor. At 27.07 grams of .900 silver (about 24.4 grams pure, roughly 0.78 troy ounces), the melt value tracks the spot silver price, typically in the low tens of dollars. No genuine Pillar Dollar is worth only its melt, but that number tells you the minimum a real one commands.

Above melt, price is driven by grade and by the specific date. Rough guidance:

The single factor that moves the needle most is the sharpness of the columns and globes. A worn, flat center drops the value hard; crisp relief on those devices is what serious buyers pay for. The 1732 first-year date carries a premium over later years in comparable grade.

Top certified 1732 and 1733 Pillar Dollars have crossed into five and even six figures at Heritage Auctions and Stack's Bowers. If you think you have a high-grade example, do not sell it raw. Get it certified first.

The myth to kill

"Old Spanish colonial coin" does not automatically mean fortune. Most Pillar Dollars that show up in inherited boxes are heavily worn, cleaned with polish (which destroys value), or outright counterfeit. A cleaned coin with shiny, scratched surfaces can lose more than half its potential value. If yours has been polished bright, resist the urge to "clean it up" further, and let a professional assess it as-is.

How to tell if yours is genuine

1. Weigh it. A jeweler's scale should read close to 27.07 grams. Silver is dense; convincing fakes are hard to get right on weight.
2. Measure it. 38 mm diameter, using calipers.
3. Check the edge. Genuine pieces have a laureate (decorated) edge, not a plain one.
4. Study the details. Compare the engraving style, the Mo mint mark, and the F assayer initial against verified reference images. Cast fakes look soft and mushy; the lettering and column detail should be sharp on a real strike.
5. When in doubt, certify. For anything you suspect is high grade or high value, submission to NGC or PCGS is the standard. Certification both authenticates and grades, which is exactly what buyers want to see.

Be suspicious of any offer far below the metal value, and equally suspicious of any "museum-quality" coin offered for a suspiciously low price.

Where to sell it

• A verified coin dealer for an on-the-spot valuation. See the Pesoteca shop directory to find one by city.
• The Pesoteca buy-sell forum to reach collectors directly.
• A major auction house (Heritage, Stack's Bowers) if the coin is certified and in high grade. That's where record prices for this type are set.

Before selling, photograph the obverse, reverse, and edge in good light, and compare against the value range above. Do not dump it to the first offer on social media. For colonial silver, always deal with someone who will show you the piece and its weight, and verify before money changes hands.

Not sure which date or grade you're looking at? Post clear photos of both sides on the Pesoteca forum and let the community weigh in before you decide what to do with it.

On June 9, 1728 Felipe V authorized the construction of screw presses at the Mexico City Mint to replace the macuquinas (cob coinage) with regular struck coinage. The first series struck under this system was the Columnario, so called for the two columns of Hercules appearing on the reverse flanking the two hemispheres. The series formally begins in 1732 with the lone initial F of assayer Francisco de la Peña y Flores. In 1733 assayer Manuel de Leon enters and it is struck with the double initials MF. The Columnario series as a whole was struck at the Mexico City Mint (Mo mint) between 1732 and 1772 under three monarchs: Felipe V, Fernando VI and Carlos III. It is considered the monetary standard of 18th-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 for 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.