100 Pesos Tlaxcala 2005: Value & Silver Content

If you inherited or found a large two-tone Mexican coin marked "100 Pesos" and "Tlaxcala" dated 2005, here is the straight answer: most examples are worth roughly USD 15 to 40 in 2026, driven mainly by their silver center and condition. It is a real silver coin, not a fortune, but not junk either.

What you actually have

The 2005 100 Pesos Tlaxcala is part of a series the Banco de México (Mexico's central bank) issued to honor each of the country's 32 states. This particular one belongs to the second phase, often called the "cultural" series, where each design featured historical and cultural symbols of the state it represents.

It is a bimetallic coin: an outer ring of brass (latón) surrounding a center made of silver. Key specs, which matter for both value and spotting fakes:

• Total weight: 33.94 g
• Diameter: 39 mm
• Silver center: yes, this is where the real metal value sits
• Edge: interrupted reeding (a segmented pattern you can feel with your finger)
• Date in the field: 2005
• Obverse: the Mexican national coat of arms (Escudo Nacional), shared across the whole series
• Reverse: cultural motifs tied to the state of Tlaxcala

The large size and two-tone look make it easy to identify. If yours matches the weight and diameter above, you have the genuine issue.

Is it rare, and what is it worth?

Honest answer: the Tlaxcala issue is not one of the scarce dates in this series. It was made in decent numbers and turns up regularly. That keeps prices modest. What moves the number up or down is condition (grade) and the silver spot price.

The silver center gives the coin a price floor. When you see people asking hundreds of dollars for one of these, that is optimistic marketing, not what they trade for.

Coin	Year	Typical circulated value	Uncirculated / graded value
100 Pesos Tlaxcala (cultural series)	2005	USD 12 to 20	USD 25 to 45+

The silver center tarnishes and loses its shine easily, so a clean example with no scratches, fingerprints, or uneven toning always sells for more. A piece certified by NGC or PCGS in a high mint-state grade sits at the top of that range, sometimes a bit above it for the sharpest examples.

The myth to ignore

Online listings and social media posts sometimes tag any large bimetallic Mexican coin as "worth thousands." For the standard 2005 Tlaxcala, that is not real. The value is the silver plus a modest collector premium. Save the excitement for genuine, verifiable mint errors, which are a different story (see below).

How to check what yours is worth

1. Weigh and measure it. Use a jewelry scale and a caliper. It should hit 33.94 g and 39 mm. Wrong weight or diameter, flat relief, or badly divided colors between ring and center usually mean a fake.
2. Grade it honestly. Look at the silver center under good light. Scratches, cleaning marks, or blotchy toning drop the value. A bright, unmarked center is what buyers pay for.
3. Check for real errors. Off-center strikes, die rotation, and doubling can multiply value if genuine and verifiable. Most "errors" floating around social media are post-mint damage (dings, corrosion), not factory errors.
4. Photograph obverse, reverse, and edge before you buy or sell anything.

For a broader picture, see our guide to Mexican silver coins and their metal content and our overview of the state commemorative series.

Where to sell it

The safest route is a verified numismatic shop from the Pesoteca directory, which appraises it on the spot without the markup of an unvetted middleman. You can also list it on the Pesoteca buy-and-sell forum, where collectors completing the full 32-state set are always looking. Skip dumping it on Facebook to the first bidder, and always confirm the current price range on this page first.

Building the complete set of all 32 states? Post your Tlaxcala on the Pesoteca forum and tell us which states you still need.

The entry devoted to Tlaxcala belongs to the first wave of the Cultural phase, issued in 2005 along with most of the set. Banxico called this second stage Motivos Emblematicos and replaced the state coat of arms with a specific cultural symbol.

The reverse of the piece shows the mural complex of Cacaxtla, polychrome paintings from AD 650 to 950 with the Battle, the Bird Man, and the Jaguar Man. The Cacaxtla murals were discovered in 1975 and preserve original pigments of cinnabar red, Maya blue, and mineral ochres. They document encounters between cultures of the Altiplano and the Gulf, with Olmec-Xicalanca warriors armed with spears and jaguars. An INAH Archaeological Zone since 1985 and protected by a climate-controlled roof.

State context: Tlaxcala was established as a state on December 9, 1856, after being a Federal Territory for decades. It is the smallest entity in the country at 3,997 square kilometers. The Republic of Tlaxcala was an ally of Hernan Cortes in the siege of Tenochtitlan in 1521, a strategic decision that earned it colonial privileges no other Indigenous domain obtained.

In the Mexican numismatic market the Cultural phase circulated less than the 2003 Escudo and today is usually found in higher grades because it reached the street late. Banxico's official mintages for this piece are not always published in the Economic Information System, but the figure reported to circulation tends to hover around 250,000 pieces per state in the Cultural phase. Always confirm against the catalog of the complete 100-peso States series before closing a large purchase.

The sister 2003 Escudo of Tlaxcala is part of the first phase of the series, with the state's official coat of arms on the reverse. Hunting down both pieces completes the set dedicated to Tlaxcala.