100 Pesos Sinaloa (Coat of Arms) 2003
Prices updated: August 2026
Union of the States: Sinaloa, first stage.
Union of the States: Sinaloa, first stage.
Design
Banxico
Reverse
Official coat of arms of the state of Sinaloa, with the perimeter legend "ESTADOS UNIDOS MEXICANOS". Reverse of the first stage of the Union of the States of the Mexican Republic 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 Sinaloa (Coat of Arms) 2003 worth?
The market value of the 100 Pesos Sinaloa (Coat of Arms) 2003 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
The 2003 Sinaloa 100 pesos coin is worth money for one concrete reason: its center is real .925 sterling silver. Most examples trade between 15 and 35 USD depending on condition, with the silver content setting a hard floor. It is not a rare coin, but it is not junk either.
If you inherited or found one of these bimetallic coins with a coat of arms showing fish and a city skyline, here is exactly what it is and what you can expect to get for it.
What this coin actually is
This is a 100 pesos two-tone (bimetallic) coin from the Mexican state of Sinaloa, part of the first phase of Banco de México's "Union of the States of the Mexican Republic" series, launched in 2003. The full set covers all 32 Mexican states, each with its own reverse. Sinaloa's reverse shows the state coat of arms: fish framed by laurel with a city in the background, representing the fishing industry and urban growth.
The obverse is shared across all 32 coins in the set: the Mexican national coat of arms (an eagle on a cactus with a snake) inside the silver center, with the denomination "100 pesos."
Does it contain silver?
Yes. This is the key value point for a US reader. The center disc is .925 sterling silver. That silver content gives the coin a bullion floor, meaning it will always be worth at least its melt value even if collector demand is flat.
| Spec | Detail |
|---|---|
| Denomination | 100 pesos |
| Year | 2003 |
| Weight | 33.78 grams (total) |
| Diameter | 39 mm |
| Center | .925 sterling silver |
| Ring | aluminum-bronze |
| Edge | interrupted reeding |
| Series | Union of the States, phase 1 (32 coins) |
Note that the 33.78 grams is total coin weight, not pure silver. The silver is only the center disc, so calculate melt value on the silver core, not the full weight.
What it is worth in USD
Be honest with yourself before you get excited. This is a modern commemorative from 2003, not a scarce colonial rarity. Value ranges we see:
- Circulated or handled examples: roughly 12 to 18 USD, driven mostly by silver content.
- Uncirculated with the original satin finish intact: 20 to 35 USD to a state or set collector.
- Certified in top grade (NGC/PCGS MS68 or higher): can reach 50 USD or more, but only for genuinely high-grade, slabbed pieces.
The premium above melt comes from collectors trying to complete the 32-coin state set, not from rarity. A single loose coin is worth less to a completist than a coin that fills a specific gap in their collection.
The "worth a fortune" myth
Some sellers online list these at wildly inflated prices claiming rarity. They are not rare. Millions of the state series coins were made, and Sinaloa is not a key date within the set. If you see one listed for hundreds of dollars, that is an asking price, not a selling price. The real number is set by the silver plus a modest collector premium.
What can genuinely raise value: a verified mint error (off-center strike, die rotation, double strike). Most "errors" posted on social media are post-mint damage such as scratches, dents, or corrosion, not factory errors. If you think you have a real one, get it verified before assuming it is valuable.
How to check what yours is worth
- Weigh and measure it. Use a jewelry scale and a caliper. It should weigh 33.78 grams and measure 39 mm. Wrong weight or diameter is a red flag for a fake.
- Check the finish. The satin/matte luster and sharp coat-of-arms relief matter. A flat, dull, or scratched surface drops the grade.
- Grade honestly. Wear, scratches, and toning move the price. If you think it is high grade, professional certification (NGC or PCGS) is what unlocks the top prices.
Where to sell it
To sell the 2003 Sinaloa 100 pesos, the safest routes are a verified coin dealer from the Pesoteca directory, who can value and buy it on the spot, or the Pesoteca buy-and-sell forum, where you deal directly with collectors who actually want the state set. Photograph the obverse, reverse, and edge, and check the price range on this page before you agree to anything.
Collectors in the region are your best market for the set. See the Sinaloa dealer hub for verified shops with honest reviews. For context on the whole series and which coins are the keys, read up on the complete 100 pesos states series, which documents all 32 phase-one coins plus the 2005 Cultural sister issues.
One loose Sinaloa coin sitting in a drawer? Post a photo of yours in the Pesoteca forum and let collectors tell you which grade it lands in before you sell.
Historical context
The 100-peso Union of the States of the Mexican Republic series began in 2003 with the first stage, called the Coat of Arms stage because the reverse carries the official arms of each of the 32 states. The piece dedicated to Sinaloa is part of that first block of 32 coins, issued by Banxico under the framework of the Monetary System that governs the modern peso since the new-pesos reform of 1993.
Sinaloa has Culiacan Rosales as its capital. It was established as a free and sovereign state in 1830. The reverse of the piece shows the state's official coat of arms, 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; while unverified in the CM10 catalog they are not reported in this record.
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 Sinaloa shows fish among laurel with a city in the background, an allegory of the fishing industry and urban development.
Sinaloa is an agricultural and fishing powerhouse of the northwest. Culiacán is its capital and Mazatlán its main tourist port.
Sinaloa did not have a colonial mint during the Mexican viceroyalty, but it joined Banxico's official commemorative program when the Bank of Mexico made the "Union of the States of the Mexican Republic" series official in 2003. This bicolor 100-peso piece is the first and only official coin dedicated specifically to the state of Sinaloa during its first stage.
If you want to hunt this piece down in person or find specialized collectors in Sinaloa, check the Sinaloa store hub, where we document the state's verified stores with honest reviews, addresses and contact details.
The Cultural 2005 sibling of Sinaloa is your next target if you are building the full 64-piece series. 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 Sinaloa have a Mexican colonial mint?
No, Sinaloa did not have a colonial mint during the viceroyalty. The active Mexican colonial mints were Mexico City (Mo, the most important), Zacatecas (Zs), Guadalajara (Ga), Guanajuato (Go), Durango (Do), Chihuahua (CH), Oaxaca (Oa, insurgent), San Luis Potosí (Pi, insurgent) and a few others of lower volume. You can see the full catalog in our colonial 8 reales series.
Is there a Cultural 2005 sibling of Sinaloa?
Banxico issued a second stage of the series in 2005 called Cultural, with the same 32 federal entities but showing a representative iconographic motif instead of the official coat of arms. Check the full 100 Pesos States series for the catalog.
Where can I buy the 100 Pesos Sinaloa 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 Sinaloa 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.
Why did Sinaloa (Coat of Arms) 2003 not have a colonial mint?
Sinaloa (Coat of Arms) 2003 did not have an operating mint during the Spanish viceroyalty. The active Mexican colonial mints were Mexico City (Mo, the most important and oldest on the continent), Zacatecas (Zs), Guadalajara (Ga), Guanajuato (Go), Durango (Do), Chihuahua (CH), Oaxaca (Oa, insurgent) and San Luis Potosí (Pi, insurgent).
The main reason was economic: mints were only established in regions with enough silver mining output to justify the infrastructure. The silver circulating in Sinaloa (Coat of Arms) 2003 during the colonial era came mainly from the central Mexico City mint. That is why this bicolor 100-peso piece from 2003 is the first official coin dedicated specifically to the state.
Key historical event of Sinaloa (Coat of Arms) 2003 (1830)
Sinaloa se separó de Sonora en 1830 y fue reconocido como estado independiente con Culiacán como capital. Antes formó parte de la provincia colonial de Sinaloa y Sonora.
Circulation and market of Sinaloa (Coat of Arms) 2003
Estado agrícola con circulación en Culiacán, Mazatlán y Los Mochis. Mazatlán como puerto turístico tiene precios ligeramente inflados.
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 Sinaloa 100 pesos coin worth?
Most examples are worth 12 to 18 USD in circulated condition, driven by the .925 sterling silver center. Uncirculated pieces with intact satin finish run 20 to 35 USD to set collectors, and certified top-grade coins (NGC/PCGS MS68+) can reach 50 USD or more. It is a modern coin, so the silver plus a modest collector premium sets the real price, not rarity.
Is the 2003 Sinaloa 100 pesos coin rare?
No. It is a modern 2003 commemorative and one of 32 coins in the state series, made in large numbers. Sinaloa is not a key date within the set. Its value comes mainly from the silver content and from collectors trying to complete all 32 states, not from scarcity.
Where can I sell my 2003 Sinaloa 100 pesos coin?
The safest options are a verified dealer from the Pesoteca directory, who can appraise and buy it immediately, or the Pesoteca buy-and-sell forum, where you deal directly with collectors completing the state set. Photograph the obverse, reverse, and edge, and check the price range on this page before agreeing to any sale. Avoid dumping it to the first bidder on social media.
How can I tell if my 2003 Sinaloa 100 pesos coin is genuine?
Weigh it and measure it: a genuine coin is 33.78 grams and 39 mm across, with a .925 sterling silver center and aluminum-bronze ring. Fakes usually have the wrong weight or diameter, flat relief, or poorly separated two-tone colors. If anything looks off, get it verified before buying or selling.
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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.
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