100 Pesos Nuevo León 2003: Silver Center, What It's Worth

If you inherited a large two-tone Mexican 100 pesos coin with a state emblem in the middle, here is the honest answer: the 2003 Nuevo León piece is worth roughly 20 to 40 US dollars in typical condition, and more only if it is in top uncirculated grade. It is real silver in the center, which sets a floor under its value. It is not a rare coin worth a fortune, but it is worth more than face value.

Quick answer: what it's worth in 2026

The 100 Pesos Nuevo León (Escudo) 2003 is part of a 32-coin state series struck by the Casa de Moneda de México (the Mexican Mint). Most examples trade in the 20 to 40 USD range among collectors. Pristine, unhandled pieces with full original luster can bring more, but circulated or scratched examples sit at the low end. The silver core gives it a real metal floor, so it will not drop to pocket-change value.

What this coin actually is

Between 2003 and 2005, the Mexican Mint issued a series of bimetallic 100 peso coins, one for each of Mexico's 31 states plus Mexico City. This is the Nuevo León entry, "Escudo" version, meaning the center shows the state coat of arms (escudo means shield or coat of arms in Spanish). There is a second variant in the series that shows representative scenes and landmarks of each state instead of the shield.

It is a big, heavy coin with a genuine silver center. Here are the exact specs to check against yours:

Spec	Detail
Denomination	100 pesos
Year	2003
State	Nuevo León (Escudo / coat of arms)
Weight	33.78 g
Diameter	39 mm
Center metal	Silver
Edge	Discontinuous reeding (broken reeded edge)
Series	Mexican states, 32 coins total

The outer ring is a base-metal alloy and the inner disc is silver. That two-tone look is what makes the series instantly recognizable.

Is it rare? Honest take

No, it is not rare in the sense of being scarce. These were made as collector-oriented coins in reasonable numbers, so plenty exist. What makes any single example worth more is condition, not the date or state. The silver center marks and scuffs very easily. A coin with full original mint luster and no rubbing on the flat surfaces (the fields) sells for a clear premium over one that has been handled or cleaned.

Before you decide anything, look at the silver center under a loupe. Hairline scratches, spots, and a dull, washed-out surface all pull the price down. Sharp detail and bright, undisturbed luster pull it up.

The "it's silver so it must be worth thousands" myth

Because the center is silver, some sellers price these like bullion jackpots. It does not work that way. The silver content is modest, and the coin's value comes mostly from the collector market for the state series, not from melt. Do not expect thousands of dollars. A single common-grade Nuevo León piece is a 20-to-40-dollar coin. The real money in this series is in assembling the complete 32-coin set in high grade, which is where dedicated collectors focus.

How to check what yours is worth

1. Weigh and measure it. Use a jewelry scale and a caliper. It should weigh 33.78 g and measure 39 mm. Off numbers are a red flag for a fake.
2. Grade the surfaces. Look at the silver center under magnification. Full luster and no rubbing means a higher grade and a higher price. Scratches, cleaning marks, or spotting drop the value.
3. Check the edge. The genuine coin has a discontinuous (broken) reeded edge. You can feel it.
4. Watch for supposed "errors." Real mint errors (off-center strikes, die rotation, doubling) can multiply value if genuine and verified. But most "errors" people post online are post-mint damage, dents, and corrosion, not factory errors. If you think you have a true error, get it reviewed before pricing it as one.

Where to sell it

To sell the 100 Pesos Nuevo León 2003, your safest options are a verified coin shop from the Pesoteca directory, which can appraise it on the spot, or the Pesoteca buy-and-sell forum where collectors trade directly. Photograph the coin front, back, and edge, and compare its condition to the price range above before you list it. Avoid dumping it on Facebook to the first bidder, and skip middlemen who mark up over fair value.

If you are working toward the full state set, check the other Mexican bimetallic 100 peso coins and see how the Nuevo León piece fits into the complete state series before buying more.

Have one sitting in a drawer and not sure about the grade? Post clear photos of both sides on the Pesoteca forum and let the community tell you what it's really worth.

The 100 pesos Union of the States of the Mexican Republic series began in 2003 with the first stage, called Escudo because the reverse bears the official coat of arms of each of the 32 states. The piece dedicated to Nuevo Leon is part of that first block of 32 coins, issued by Banxico under the framework of the Monetary System that has governed the modern peso since the new pesos reform of 1993.

Nuevo Leon has Monterrey as its capital. It is one of the original states of the Federal Pact of 1824, signed on January 31 of that year. The reverse of the piece shows the official state coat of arms, without allusions to specific historical episodes: the central motif is the heraldic emblem. For mintages and economic circulation data for each piece of the series, the sources are the official Banxico reports; until they are verified in the CM10 catalog they are not reported in this entry.