1747 Mexico 8 Reales Fernando VI: Value & Price Guide

If you inherited or found a 1747 Mexico 8 Reales with Fernando VI on it, here is the straight answer: it is real silver, it has genuine value, and depending on condition it can run from about 150 USD for a worn, cleaned example to several thousand USD for a sharp, certified one. This is a 275-year-old colonial coin, not a modern trinket, and that matters.

The 8 Reales, often called a "piece of eight," was the silver dollar of the Spanish colonial world. This one was struck in 2026's reference year of 1747 at the Mexico City mint (ceca México) under King Fernando VI, with the assayer initials MF. It belongs to the broader 8 Reales Coloniales series, one of the most collected silver coin families in the world.

What it is worth in 2026

Value on a colonial 8 Reales is driven by three things: how much of the design survives (grade), whether it has been cleaned or damaged, and current silver spot as a floor. Because this is a hand-struck colonial coin, no two are identical, and condition swings the price hard.

Condition	What it looks like	Approximate value (USD)
Heavily worn / cleaned	Design flat, details soft, harsh surfaces	120 to 250
Circulated, honest wear	Portrait and shield readable, natural toning	250 to 600
Lightly circulated	Strong detail, minor wear on high points	600 to 1,500
Certified high grade (NGC/PCGS)	Sharp strike, original surfaces	1,500 to several thousand

These are collector-market ranges for a genuine, properly attributed coin. A cleaned or damaged example sells at the low end no matter how old it is. Age alone does not make a coin valuable; grade and originality do.

The silver floor

This coin is struck in .900 fine silver and weighs 26.97 grams, giving it roughly 0.78 troy ounces of pure silver. That silver content sets a hard minimum: even a beat-up example is worth its melt value in silver, which as of recent spot prices is well over 20 USD in metal alone. A genuine colonial 8 Reales in any collectible condition trades far above melt, so you should never sell one for scrap.

How to tell if yours is genuine

Counterfeits of colonial 8 Reales exist, so verify before you buy or sell. Real specifications for this issue:

• Weight: 26.97 grams. A digital scale is your first test. If it is meaningfully off, be suspicious.
• Diameter: 40 millimeters.
• Edge: laureate (decorated, not plain or reeded like modern coins).
• Ping test: genuine silver rings with a high, sustained tone when balanced on a fingertip and tapped. Fakes sound dull and short.

For a coin that could be worth four figures, none of these home tests replace professional certification. Sending your best example to NGC or PCGS for grading and authentication is the definitive answer, and a certified coin sells for more and faster than a raw one. See our coin grading guide to estimate condition before you spend on grading.

About the mintage

Exact mintage figures for individual colonial issues like this 1747 date are not reliably documented. That is normal for coins this old and does not by itself make the coin rare or common. What matters more to value is how many survive today in collectible grade, and high-grade colonial 8 Reales are genuinely scarce because most circulated hard for decades.

Where to sell it

Because this is a precious-metal collectible, deal only with people who will inspect the coin and verify weight before money changes hands.

• Certified auction (best for high grade): Heritage Auctions and Stack's Bowers regularly sell colonial Mexican 8 Reales. If your coin certifies well, this is where top prices happen.
• Verified numismatic dealers: browse the Pesoteca shop directory for vetted dealers who can appraise and buy on the spot.
• Collector marketplace: the Pesoteca buy-and-sell forum puts you in front of collectors who actually know the series.

Before selling, photograph the obverse, reverse, and edge in good light, and check the grade ranges above. Avoid dumping it to the first buyer on a general marketplace, where colonial fakes are common and buyers will lowball an unverified coin.

Have a 1747 8 Reales in hand and not sure what grade it is? Post clear photos on the Pesoteca forum and let collectors who handle these help you pin down its value.

This piece belongs to the reign of Fernando VI of Spain (1746-1759). Son of Felipe V. His reign was marked by neutrality in the European conflicts and by enlightened reforms in Spain and the Indies.

The government of New Spain in 1747 was in the hands of Juan Francisco de Güemes y Horcasitas, Count of Revillagigedo, the first viceregal period of the Güemes family.

The numismatic type of the piece is pillar (columnario), officially introduced in New Spain in 1732. The reverse shows two crowned globes between the Pillars of Hercules with the motto PLVS VLTRA, and for the first time the coin was struck on a screw press with a laureate edge, which reduced the fraudulent clipping of silver and made the pillar real the most trustworthy trade coin of its time.

The Mexico mint formally introduced the mechanized striking of pillar reales in 1732, and from then on the crowned Mo mark was accompanied by the assayer's initials. Production was enormous, exported as trade currency to the Philippines, China, Protestant Europe and the 13 English colonies. The assayer's initials declared on the piece are MF, an official of the Royal Treasury charged with certifying the silver fineness (0.930 and later 0.903) according to viceregal standard.

The Krause catalog references this piece under KM#104.1, useful for cross-checking the entry against international auction listings.

Year following the accession of Fernando VI, with the Mexico mint refining the pillar design under the new dynasty.