8 Reales Felipe II: Value, Weight & How to Sell

If you inherited a heavy silver coin marked with the name of Felipe II and a shield, you have a piece of one of the most collected series in world numismatics: the Spanish colonial 8 reales, struck at the Mexico City mint (Casa de Moneda de México). In 2026, the value depends almost entirely on condition, type, and how clearly the coin can be attributed. Common worn examples trade for the price of their silver plus a modest collector premium; sharp, certified pieces from scarce dates can command hundreds to several thousand dollars.

Here is the honest breakdown so you know what you actually have before anyone quotes you a price.

What this coin is

The 8 reales was the standard large silver piece of the Spanish Empire, the direct ancestor of the American silver dollar. The ones marked with Felipe II (Philip II of Spain, reigned 1556 to 1598) and struck in Mexico are among the earliest coins made in the Americas. Later 8 reales of the same denomination continued for centuries, so exact attribution matters a lot for value.

Key specifications for this piece:

Feature	Detail
Denomination	8 reales
Metal	Silver, .900 fine (0.900)
Weight	27.15 grams
Diameter	32 mm
Edge	Plain (unmilled)
Mint	Mexico City (Casa de Moneda de México)
Assayer mark	F
Era	Spanish colonial (Virreinato)

The assayer initial (the F) is the mark of the mint official who guaranteed the silver content. On early hand-struck 8 reales these letters, along with the mint mark and shield, are how specialists confirm which issue you own.

What it is actually worth

There is no single price for an 8 reales, and any site that gives you one flat number is guessing. Value moves on four things: which specific issue it is, how much detail survives (grade), whether it is genuine and certified, and the current price of silver.

• Metal floor. With 27.15 grams of .900 silver, the coin contains roughly 0.785 troy ounces of pure silver. That gives it a bullion floor: whatever silver is trading at, an authentic piece will not sell for less than its melt value. That floor is usually a few tens of dollars per coin, and it rises with the silver market.
• Collector premium. Genuine early Mexico City colonial 8 reales in identifiable, honest condition regularly sell from around 100 to several hundred USD. Scarce dates, strong strikes, and pieces certified by NGC or PCGS climb into the high hundreds and, for the best survivors, into the low thousands.
• The gap that matters. A worn, corroded, unattributed coin and a sharp, certified example of the same type can differ tenfold in price. Condition is the single biggest lever you control.

The myth to kill first

Many people assume any old Spanish colonial coin is worth a fortune because it is centuries old. Age alone does not create value. Millions of 8 reales were struck over the life of the series, and worn common examples are affordable precisely because so many survive. What drives real money is a scarce issue, a high grade, and third-party certification, not simply the date. Treat any listing promising "millions" with skepticism.

A second problem: this exact denomination and portrait were copied and counterfeited heavily, both historically and today. That makes authentication non-negotiable before you sell.

How to tell if yours is genuine

Start with the physical checks, then move to a professional if the coin looks promising.

1. Weigh it. A genuine piece should weigh close to 27.15 grams. A coin that is significantly light or heavy is a red flag. Real silver also wears differently than plated base metal.
2. Measure it. Diameter should be near 32 mm.
3. The ping test. Balance the coin on a fingertip and tap it gently. Genuine silver rings with a clear, sustained high note. Fakes made of base metal sound dull and short.
4. Look at the edge and surfaces. Cast counterfeits often show a seam, bubbles, or a grainy texture. Detail should be crisp where wear has not reached.
5. Get it certified. For anything you believe is worth more than a hundred dollars, submit it to NGC or PCGS. Certification confirms authenticity, assigns a grade, and is what serious buyers pay premiums for. It is the single best investment you can make in a coin you plan to sell.

Check your coin against our Mexican coin grading guide before assuming a grade yourself. This piece belongs to the broader Colonial 8 Reales series, which is worth browsing to place your exact type.

Where to sell it

Because this is a precious-metal coin that gets faked, sell only where the buyer can inspect it and verify weight in front of you.

• Certified auction houses (Heritage, Stack's Bowers) are where the strongest colonial 8 reales realize the highest prices, especially certified early pieces.
• Verified numismatic dealers give you an on-the-spot appraisal. Use the Pesoteca dealer directory to find one near you and avoid middleman markups.
• Collector-to-collector through the Pesoteca buy-and-sell forum, where you can post clear photos of the front, back, and edge.

Before you list it, photograph the obverse, reverse, and edge in good light, and record the exact weight. Do not dump it on the first social-media offer; a certified example is worth waiting for the right buyer.

Think you have an early Mexico City 8 reales? Post clear photos of both sides and the edge in the Pesoteca forum and let collectors help you pin down the exact issue before you sell.

This piece belongs to the reign of Felipe II of Spain (1556-1598). Son of Carlos I of Spain (Carlos V of the Holy Roman Empire). Under his reign the Spanish Empire reached its maximum territorial extent.

The viceregal period in which this piece was struck coincided with the administration of the Royal Audiencia of Mexico and its titular viceroys, who governed the New Spanish territory until 1821.

The numismatic type of the piece is cob, also called hammer-struck coin. The planchets were cut with shears from a silver bar and struck between manual dies, so no cob has a milled edge or a perfectly circular shape. It circulated as the benchmark trade coin throughout the Atlantic for more than two centuries.

The Mexico mint (crowned Mo mark) operated from 1535 as the first mint in the Americas. During the 17th century it struck cobs almost without interruption, being the main point of issue for minted silver in the Spanish empire. The assayer's initials declared on the piece are F, an official of the Royal Treasury charged with certifying the silver fineness (0.930 and later 0.903) according to the viceregal standard.

Colonial catalogs trace this piece within the families of the Mexico eight-real piece, with prices that respond to rarity by year and assayer signature.

The F signature identifies a specific family of Felipe II cobs of the Mexico mint, traceable through colonial catalogs to narrow down the era within the reign.