100 Pesos Zacatecas 2003 (Coat of Arms): Value & Silver Content
Prices updated: August 2026
Union of the States: Zacatecas, first stage.
Union of the States: Zacatecas, first stage.
Design
Banxico
Reverse
Official coat of arms of the state of Zacatecas, with the perimeter legend "ESTADOS UNIDOS MEXICANOS". Reverse of the first stage of the Unión de los Estados de la República Mexicana series.
Obverse
Mexican National Coat of Arms within the silver center, with the denomination "100 PESOS" and the legend "ESTADOS UNIDOS MEXICANOS" on the aluminum bronze ring. Year of minting on the obverse.
How much is the 100 Pesos Zacatecas 2003 (Coat of Arms): Value & Silver Content worth?
The market value of the 100 Pesos Zacatecas 2003 (Coat of Arms): Value & Silver Content is not yet documented with enough data to give a firm range. Weigh and measure your piece, compare it against the specifications, and check the forum for a second opinion.
The real price depends on four factors: the grade of preservation (a circulated piece is worth the low end of the range; an uncirculated one, or one still in its official blister pack, the high end), the finish (satin vs mirror/proof), the rarity within the series based on the mintage, and the metal spot price on the day of the deal when the piece is silver or gold. Check the value-by-grade table above and compare with equivalent pieces before buying or selling.
Where to buy or sell this coin?
Browse the national directory of numismatic shops or the community forum to trade directly with other collectors.
States of the Federation
The 64 pieces of the 180th Anniversary series
This coin is part of the series that dedicated one piece to each Mexican state. Two phases: Heraldic (2003) and Cultural (2005-2007).
Description
If you inherited or found a 100 pesos coin dated 2003 with the Zacatecas coat of arms, the short answer is this: it has a genuine silver center, so it is worth more than face value. In most grades you are looking at roughly 15 to 40 USD, driven mostly by the silver, with the finest uncirculated examples reaching higher. It is not a rare coin, and it is not a fortune, but it is real silver and it is collectible.
This piece is one of 32 bimetallic 100 pesos coins from the first stage of the "Unión de los Estados de la República Mexicana" series (Union of the States of the Mexican Republic), issued by the Bank of Mexico. Each coin honors one state. This one is Zacatecas, and the reverse shows the official state coat of arms: the Cerro de la Bufa hill with a skull and arches, a reference to the region's colonial history and its famous silver mines.
What it's actually worth in 2026
Most of the value in this coin comes from the metal, not from rarity. Here is why: the center disc is Sterling silver, .925 fine. That gives the coin a hard floor. Even a worn example will never sell for less than the value of the silver it contains.
Breaking it down:
- Circulated or lightly handled: roughly 12 to 20 USD, tracking the silver spot price.
- Uncirculated, original satin finish: roughly 25 to 40 USD.
- Certified high grade (NGC/PCGS MS67+): can exceed 50 USD, but only if a grading service has slabbed it.
The silver content is the anchor. The satin proof-like examples in original Bank of Mexico packaging carry a small premium over that because collectors want them for the full 32-coin set.
| Coin | Year | Metal | Typical value (USD) | Where it sells |
|---|---|---|---|---|
| 100 Pesos Zacatecas (Coat of Arms) | 2003 | Silver center (.925) + aluminum-bronze ring | 15 to 40 | Coin dealers, collector forums |
| Same, certified MS67+ | 2003 | Same | 50+ | Heritage, eBay certified listings |
The specs (verify yours against these)
Weight and diameter are how you spot a fake, so measure your coin and compare:
- Weight: 33.78 grams
- Diameter: 39 millimeters
- Composition: bimetallic, Sterling silver .925 center, aluminum-bronze outer ring
- Edge: discontinuous reeding (a pattern typical of this whole coin family)
- Obverse: the Mexican national coat of arms inside the silver center, with the denomination "100 pesos"
The obverse is shared across all 32 coins in the set. Only the reverse changes from state to state.
Is it rare? No, and here's the honest read
These were minted in the millions and released for both circulation and collectors. It is not scarce. What makes it worth owning is the silver and its place in a complete state set, not its rarity. Do not expect a five-figure sale. Any listing claiming this common coin is worth thousands is either a fantasy price or a misidentified error coin.
Speaking of errors: genuine mint errors (off-center strikes, die rotation, doubled strikes) can multiply the value. But most "errors" people see are post-mint damage, dings, scratches and corrosion, which add nothing. If you think you have a real error, get a second opinion before you get excited.
The Zacatecas silver connection
Zacatecas has deep numismatic history because of its colonial mint, marked Zs (Zacatecas, active 1810 to 1905), one of the three major silver mints of the Mexican viceroyalty. The 8 reales struck there, the historic "pieces of eight," are actively collected today and trade anywhere from about 45 to 850 USD depending on year, assayer initials and condition. If you find an old silver coin marked Zs in the same box, that is a different and potentially more valuable animal. See the colonial 8 reales series for reference.
There is also a companion coin: in 2005 the Bank of Mexico issued the Zacatecas Cultural 2005 as part of the second stage of the series, using a state-specific cultural design instead of the coat of arms. The two together complete the Zacatecas 100 pesos pairing.
How to check what yours is worth
- Weigh and measure it. Use a jewelry scale and calipers. If it isn't 33.78 g and 39 mm, treat it as suspect.
- Grade it honestly. Wear, scratches and toning drop the value toward melt. Original luster and a clean satin finish push it up.
- Compare to sold prices, not asking prices. eBay's completed listings are a reality check.
- Consider certification only if the coin looks flawless. Grading fees can exceed the coin's value, so it rarely makes sense for a common issue.
Where to sell it
For the best outcome, take it to a verified coin dealer who can value it on the spot, or list it among collectors in the Pesoteca buy-and-sell forum. Photograph the obverse, reverse and edge before you do anything, and check the range in this guide first. Avoid dumping it to the first offer on social media.
Do you have the full 32-coin state set, or just this one from Zacatecas? Post your photos in the Pesoteca forum and the community will help you confirm the grade and a fair price.
Historical context
The 100 pesos series Unión de los Estados de la República Mexicana began in 2003 with the first stage, called the Coat of Arms stage because the reverse bears the official arms of each of the 32 states. The piece dedicated to Zacatecas 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 nuevos pesos reform of 1993.
Zacatecas has Zacatecas 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 coat of arms of the state, with no allusion to specific historical episodes: the central motif is the heraldic emblem. For mintages and economic circulation data of each piece in the series, the sources are Banxico's official reports; until they are verified in the CM10 catalog, they are not reported in this listing.
This piece belongs to the era
Nuevos Pesos y actualidad →Explore all the Mexican coins of this era, their historical context and how they connect to the monetary system of the period.
Go deeper on this coin
100 pesos de los Estados: la moneda de plata dedicada a tu estado (guía completa Escudo y Cultural)
Banxico acuñó una moneda de plata para cada uno de los 32 estados de México, y luego lo hizo dos veces. Aquí está la guía completa de las 100 pesos de los Estados: qué son, la diferencia entre la versión Escudo y la Cultural, por qué el centro de plata importa, cómo armar la colección y la lista de las 64 fichas para que caces la de tu tierra.
Read the full article →Unique context of this piece
The coat of arms of Zacatecas shows the Cerro de la Bufa, a skull and arches, a reference to the conquest and the silver mines.
Zacatecas is a UNESCO World Heritage Site and home to the colonial Zs mint, one of the 3 great mints of the viceroyalty. Its silver mines produced millions of 8 reales.
The historic numismatic distinction of Zacatecas is the colonial mint Zs (colonial Zacatecas, 1810-1905) — one of the 3 most important of the viceroyalty, which operated through most of the 19th century and struck silver pieces that are hunted today by Mexican and foreign collectors. That heritage gives Zacatecas a strong numismatic tradition that is reflected in the local trade of modern commemorative pieces such as this one.
If you want to hunt this piece down in person or find specialized collectors in Zacatecas, check the Zacatecas store hub, where we document the state's verified stores with honest reviews, addresses and contact details.
If you collect the full series, your next target is the Cultural 2005 sibling of Zacatecas, struck two years later with a state-specific iconographic motif instead of the official coat of arms. The full 100 Pesos States series also has the complete catalog with every sibling piece verified by Pesoteca.
Related pieces and hubs
Specific questions about this piece
Did Zacatecas have a colonial mint?
Yes, Zacatecas had a colonial mint identified as Zs (colonial Zacatecas, 1810-1905) — one of the 3 most important of the viceroyalty. You can review the sibling colonial pieces from the same region in our colonial 8 reales series. The 8 reales from that mint trade today between 800 and 15,000 pesos depending on year, assayer and state of preservation.
What is the difference from the 100 Pesos Zacatecas Cultural 2005?
The Coat of Arms 2003 version (this one) shows the state's official coat of arms on the reverse. The sibling Cultural 2005 version shows an iconographic motif representative of the state (a historical figure, a monument, a cultural element) instead of the coat of arms. Both share the bimetallic format and composition. Collecting both is what completes the 100 Pesos set of Zacatecas.
Where can I buy the 100 Pesos Zacatecas Coat of Arms 2003 today?
The main circuit for pieces in this series is the specialized numismatic market: auction houses, verified stores in the state, and private collectors. In the Zacatecas store hub we document the local options with honest reviews. For UNC pieces or those with the original Banxico blister pack, the price rises between 3x and 8x the 100-peso face value.
The colonial mint of Zacatecas 2003 (Coat of Arms): Value & Silver Content
Zacatecas 2003 (Coat of Arms): Value & Silver Content had an operating mint with the mintmark Zs during the 1810-1905 (una de las 3 más importantes del virreinato) period. The silver pieces struck there, mainly 8 reales from the Independence era and the 19th century, are sought after today by Mexican and foreign collectors.
Notable assayers: AZ, RG (Ramón Guerrero), OM, ML (Manuel de Legoreta), MO, JS, MZ. Each assayer marked the initials of their name on the design, which allows pieces to be cataloged by year and by assayer mark. A single year can have 3-5 variants depending on the assayer.
You can review related colonial pieces on the example page or in the full 8 reales colonial series.
Figures and symbols of Zacatecas 2003 (Coat of Arms): Value & Silver Content on other Mexican coins
Beyond the official coat of arms that appears on this 2003 piece, Zacatecas 2003 (Coat of Arms): Value & Silver Content has other symbols and figures that have been depicted in the official numismatic catalog of Banxico and the Mint:
- 20 pesos Toma de Zacatecas 2014
Conmemora los 100 años de la batalla clave de 1914 que consolidó el avance villista durante la Revolución.
Key historical event of Zacatecas 2003 (Coat of Arms): Value & Silver Content (1914)
La Batalla de Zacatecas se libró el 23 de junio de 1914, cuando la División del Norte de Francisco Villa derrotó al ejército federal huertista. Fue la batalla más decisiva del norte y aceleró la caída del gobierno de Victoriano Huerta.
UNESCO heritage of Zacatecas 2003 (Coat of Arms): Value & Silver Content
Zacatecas 2003 (Coat of Arms): Value & Silver Content is home to the following sites recognized as UNESCO World Heritage:
- ▸ Centro histórico de Zacatecas (1993)
Circulation and market of Zacatecas 2003 (Coat of Arms): Value & Silver Content
Patrimonio UNESCO con museo Antigua Casa de Moneda. Coleccionismo activo por herencia colonial (ceca Zs de las 3 grandes) y por conmemorativa Toma Zacatecas 2014.
Other denominations from 2003
180 Aniversario de la Unión de los Estados en una Federación · Bimetálica
Same denomination, other years
100 pesos Bimetálica · 180 Aniversario de la Unión de los Estados en una Federación
Frequently asked questions
How much is the 2003 Zacatecas 100 pesos coin worth?
In most grades it sells for roughly 15 to 40 USD, driven mainly by its Sterling silver (.925) center. Circulated examples track the silver spot price around 12 to 20 USD, while pristine uncirculated coins with the original satin finish reach 25 to 40 USD. Certified high-grade examples (MS67 and up) can exceed 50 USD.
Is the 2003 Zacatecas 100 pesos coin rare?
No. It was minted in the millions and released for both circulation and collectors. Its value comes from the silver content and its role in the 32-coin state set, not from rarity. Any listing claiming it is worth thousands is either an inflated fantasy price or a misidentified error coin.
Where can I sell my 2003 Zacatecas 100 pesos coin?
The safest options are a verified coin dealer who values it in person, or the [Pesoteca buy-and-sell forum](/foro/compra-venta) among collectors. Photograph the obverse, reverse and edge, and compare against completed sale prices (not asking prices) before you sell. Avoid accepting the first social-media offer.
How can I tell if my 2003 Zacatecas 100 pesos coin is genuine?
Weigh and measure it. A genuine coin weighs 33.78 grams and is 39 millimeters in diameter, with a Sterling silver center and an aluminum-bronze ring. Fakes usually have the wrong weight or diameter, flat relief, or poorly divided colors between the two metals. Use a jewelry scale and calipers to confirm.
Conversation
0 comments
Sources
Images for informational and educational purposes, attributed to their original source. Reference values; the real price depends on the grade, the specific variant and demand.
Loading comments…