History, market and guides of Mexican numismatics, written for collectors, the curious and historians.
Latest
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Guide
How Much Is the Axolotl 50 Peso Bill Worth in 2026?
Mexico's axolotl 50 peso bill won the world's best banknote award in 2022, but it's worth about 3 US dollars in practice. Here's what actually drives its value and how to spot the real thing.
August 23, 2026
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Guide
Best Coin Shops in Mexico City (2026): Where to Buy, Sell & Appraise
A ranking of 10 numismatic shops in Mexico City based on verified Google reviews, with addresses, ratings, and what each one is good for if you plan to buy, sell, or get coins appraised.
August 23, 2026
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News
The 2,000 Peso Mexican Banknote: The Ghost Design Banxico Approved but Never Printed
Someone told you a 2,000 peso Mexican banknote exists. Half true, half false. Banxico approved the design years ago, featuring Octavio Paz and the Tequila agave landscape, but it has never been printed and does not circulate.
August 23, 2026
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Guide
Are Old Mexican Coins Worth Money? A Straight Answer for 2026
Most Mexican coins in a drawer are worth a few dollars. But some are worth real money for specific reasons. Here's how to check what you have and where to sell it.
August 23, 2026
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Guide
Fake Silver Libertad: 7 Tests to Spot One Fast (2026)
Seven checks to confirm whether your Onza Libertad silver coin is genuine: weight of 31.103 grams, diameter of 36 or 40 mm by series, magnet, ping test, and relief detail.
August 23, 2026
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Guide
Coin Grading Explained: What Your Mexican Coins Are Really Worth (2026)
Grade is the single factor that separates a Mexican coin worth its metal from one worth 10 or 20 times more. Here is how the grading scale actually works in dollars, and how to check a coin yourself before you overpay.
August 23, 2026
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Guide
Mexican Mint Marks Explained: Complete Guide to Every Historic Mint (2026)
Mexico had 13 official mints, from one that has run for nearly 500 years to others that lasted weeks. Learn to read every mint mark and spot the rare ones worth 20 to 80 times more.
August 23, 2026
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Guide
Most Valuable Mexican Banknotes (2026): What They Are and Why
Some Mexican banknotes are worth far more than their face value: the Diego Rivera and Frida Kahlo 500, private-bank notes from the Porfiriato era, Revolution-era scrip, and any note with a printing error or rare serial. No made-up prices, just what actually drives value.
August 23, 2026
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Guide
Coin Appraisers & Certification for Mexican Coins: What It Costs and How to Choose (2026)
How coin appraisal and certification work for Mexican coins, what it costs in USD, which certifications matter (SNM, NGC, PCGS), and how to avoid the traps that cost sellers money.
August 23, 2026
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News
Mexico's 2026 World Cup Coins: What They Are and How Much They're Worth
Mexico issued a series of 2026 FIFA World Cup coins in bimetallic, pure silver and pure gold. Here's what each one is, what it costs, and what it's actually worth.
August 23, 2026
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Guide
Mexican Coin Collecting Dictionary: 100+ Terms Explained in Plain English
A plain-English glossary of 100+ Mexican and world numismatic terms, from proof and BU to macuquina and mule, so you know exactly what you own before you buy or sell.
August 23, 2026
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Tutorial
How to Store and Protect Your Mexican Coin Collection (2026)
Cleaning an old coin can slash its value by 30 to 70 percent. Here is how to store and protect your Mexican coins the right way, using safe holders, humidity control, and habits that keep the patina intact.
August 23, 2026
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Guide
The 3 Most Valuable 20-Peso Mexican Coins (2026): Real Values
Most 20-peso commemorative Mexican coins are worth a few dollars. Three are worth real money because of one thing: low mintage. Here are the Hidalgo 1995, Zacatecas 2014, and Belisario 2013, with actual values.
August 23, 2026
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Tutorial
How Mexican Coins Are Minted (and Which Errors Are Worth Real Money) 2026
How Mexican coins are made, from blank to finished strike, and why the same coin can vary in detail. Plus the mint errors collectors pay a premium for.
August 23, 2026
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Guide
New Mexican 10 Peso Coin (2026): Steel Change and What Happens to the Old Ones
Mexico made it official: the center of the 10 peso coin switches from nickel silver to nickel-plated steel. Here is what changes, why, and the part no one covers: whether your current coins are worth anything to collectors.
August 23, 2026
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Guide
Mexican Independence & Revolution Banknotes: What They're Worth
The 200-peso Hidalgo note (Independence Bicentennial) and the 100-peso locomotive note (Revolution Centennial) form a commemorative pair. Here's which is which and what they're actually worth.
August 23, 2026
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Guide
Collecting Mexican Banknotes: A Beginner's Guide (2026)
Collecting paper money is called notaphily. Here's what makes a Mexican banknote worth more than its face value, which ones collectors chase, and how to start without getting ripped off.
August 23, 2026
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Market
Modern Mexican Coins Worth More Than Face Value (2026)
Five Mexican coins still in circulation today can be worth 5 to 50 times what the reverse says. Before you spend that change, know what to look for.
August 23, 2026
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Guide
The Most Counterfeited Mexican Banknotes (2026): Official Banxico Data
As of September 2021, 39.4 counterfeit notes circulated for every million genuine ones in Mexico. Here's what PPM measures, which denomination is faked most, and how to check the bills in your wallet.
August 23, 2026
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News
How Resellers Broke the Onza Libertad Silver Coin Market
Mexico's commemorative silver coins are no longer reaching regular buyers. Lines of 200 for 50 coins, resellers charging 150% over melt, and months of silence from the central bank. Here is how the market broke.
August 23, 2026
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Guide
The Guadalajara 2026 World Cup Coin: The Host City Collectors Are Chasing Hardest
Mexico's central bank issued three official coins for Guadalajara as a 2026 World Cup host city: a 20-peso bimetallic, a 1 oz silver, and a 1/4 oz gold. Here is what each is worth and why collectors are chasing this one.
August 23, 2026
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Guide
Mexican 100 Pesos State Coins: Complete Guide to the Silver Series (2026)
Mexico's Banco de México minted a silver 100 pesos coin for each of its 32 states, and then did it a second time. Here is the complete guide to all 64 State Coins: what they are, the difference between the Coat of Arms and Cultural versions, and what actually drives their value.
August 21, 2026
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History
Mexican Coins Timeline 1535 to 2026: History and Value in USD
Mexico has struck coins without interruption since 1536. Most are worth a few dollars, but a handful command tens of thousands. Here is the complete timeline, with real prices.
August 21, 2026
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Guide
Mexican Coins Changing in 2026: New Metals, the Kukulcán Coin & the 20-Peso Bill Bowing Out
Mexico is quietly overhauling its circulating money in 2026: new core metals in the 1 to 10 peso coins, the 20-peso bill fading out, and a new Kukulcán 20-peso coin. Here is what changes, what stays, and what any of it is worth.
August 21, 2026
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Guide
How to Buy From the Mexican Mint (Casa de Moneda): Prices & Stores 2026
The Casa de Moneda de México, the oldest mint in the Americas, sells gold and silver coins directly to the public. Here is where and how to buy at official prices, no dealer markup.
August 21, 2026
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History
1910 Caballito Peso: Value, Years & How to Spot Fakes (2026)
The silver Caballito Peso is one of Mexico's most beloved coins. Here's what it's really worth in dollars, which year commands the most, and how to tell a genuine one from a cast fake.
August 21, 2026
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Market
Rare Libertad Coins (1949-2025): The 10 Most Wanted and What They're Worth
Ten Onza Libertad coins with three-digit mintages according to Mexico's central bank, including the 141-piece 2002 gold half-ounce. Here's how to spot one and what it's worth.
August 21, 2026
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Guide
Old Mexican Banknotes: Which Ones Are Worth Money (2026)
Most old Mexican banknotes are worth little more than their history, but a handful genuinely command a premium. Here is which ones, why, and how to figure out what you actually have.
August 21, 2026
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News
Sealed Bags of 700 World Cup 2026 20-Peso Coins on Sale While Banxico Said 10 Per Person
Mexico's central bank set a limit of 10 World Cup 2026 20-peso coins per person, but a photo shows a factory-sealed Mint bag of 700 for sale. Here's who has the wholesale lots and why the distribution stays hidden.
August 21, 2026
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News
The Mexican 20-Peso Bill Is Being Phased Out: What Banxico Officially Says
Banxico put it in writing: the 20-peso denomination will stop circulating as a bill and be replaced by a coin. Here is what "gradually" actually means, and the coin that takes its place.
August 21, 2026
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News
Mexico 2026 World Cup Silver Coins: The Resale Story and What They Cost
Mexico released FIFA-licensed silver and gold coins for the 2026 World Cup. Resellers had them before the public did, and the official bank price was nearly as high as the gray market. Here is what happened and what the coins actually cost.
August 21, 2026
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Market
Mexican 20 Peso Bicentenario Coin Value (2026): Treasure or Pocket Change?
If you searched "Mexican 20 peso Bicentenario worth millions," here is the honest answer: 262 million were made, and the real secondary market price is around 2 to 3 USD, not a fortune.
August 21, 2026
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Guide
Mexican 20 Peso Commemorative Coins (2026): Value, Rarity & Where to Buy
Most Mexican 20 peso commemorative coins are worth face value, about one US dollar. A few historic issues sell for several hundred dollars. Here is which is which.
August 21, 2026
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Market
How Much Is an Onza Libertad Worth? (2026 Price Guide)
Most 1 oz silver Libertads are worth silver spot plus a small premium. But a few low-mintage years, like the 2000 with 1,284 coins, sell for many times that.
August 21, 2026
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Guide
Centenario 50 Pesos Gold Coin: How to Tell the Real 1921-1925 From the Restrike (and Why That '1947' Isn't What You Think)
You found a '1947 Centenario' and heard it's worth a fortune. The truth: Mexico's Centenario gold coin was originally struck only from 1921 to 1925. The 1947 is a restrike worth its gold, and here's how to spot the difference.
August 21, 2026
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History
Mexican Series G Banknotes: Why Banxico Took 8 Years to Design Them
Designing a full family of Mexican banknotes takes about eight years. Series G was authorized in May 2013 and wrapped up in 2021. Here is the process behind the note in your wallet.
August 21, 2026
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Guide
The Monterrey 2026 World Cup Coin: A Design That Breaks the Set
Monterrey returns to the World Cup 40 years after 1986. Three official Banxico coins with one unusual detail: the reverse shows El Crisol Fountain and Cerro de la Silla, with no soccer player. The only host coin in the set that breaks the pattern.
August 21, 2026
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Guide
The Mexico City 2026 World Cup Coin: The Only Host in Three World Cups
Mexico City's three official 2026 World Cup coins, from a circulating 20-peso piece to pure silver and gold versions, tied to the only stadium on earth to host three World Cups.
August 21, 2026
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Guide
Banxico Coin Catalog: How to Find Official Mexican Coin Data (2026)
The Bank of Mexico publishes data on every Mexican coin, but it's scattered across loose PDFs, SIE tabs with codes like CM22, and a 3D viewer that won't load on your phone. That's why we built Pesoteca.
August 21, 2026
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Guide
Is the Gold Centenario Worth Buying? Real Guide (2026)
The Centenario is Mexico's best-known gold coin. Here's what it's worth today, why it works as a safe haven, when it's a bad idea, and how it stacks up against safer options.
August 21, 2026
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Guide
Investing in Physical Gold and Silver from Mexico: The Real Guide (2026)
Gold and silver are back in 2026. How to buy physical metal without overpaying: the tax advantage nobody explains, gold vs silver vs safe savings, and the three places where people lose money.
August 21, 2026
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Guide
Collecting Mexican 20 Peso Coins: The Honest Guide (2026)
A no-hype guide to Mexico's 20 peso commemorative coins: which ones actually have value, which is genuinely rare, and how much the complete set really costs.
August 21, 2026
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Guide
Where to Sell Mexican Coins in the US (Without Getting Lowballed) in 2026
Inheriting Mexican coins is easy. Selling them without getting lowballed is the hard part. A few channels pay fair value, others take half, and one that almost nobody uses pays the best.
August 21, 2026
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Guide
Mexican Coin Error Values (2026): Which Ones Are Actually Worth Money
Real Mexican mint errors do carry a premium, but most are worth a few dollars, not a retirement fund. Here are the documented error types that actually sell, and how to tell them from post-mint damage.
August 21, 2026
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Guide
Mexico's 100 Peso Constitution Centennial Note: What It's Worth (2026)
The red 100 peso Carranza note and the 20 peso coin marked Mexico's 1917 Constitution Centennial. Which is which, what makes them collectible, and what they actually sell for.
August 21, 2026
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Guide
Mexico 86 World Cup Coins: What They Are and What They're Really Worth
With the 2026 World Cup here, everyone is asking about the Mexico 86 coins. Here are the silver pieces, their real market value in dollars, and the truth about the viral price that never actually happens.
August 21, 2026
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History
1968 Mexican 25 Pesos Olympic Coin: Fallen vs Straight Rings and What It's Worth
What the 1968 Olympic 25 Pesos silver coin is, the difference between straight and fallen rings, what it actually sells for, and how to spot fakes.
August 21, 2026
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Market
How Much Is Your Mexican 20-Peso Commemorative Coin Worth? (2026)
Mexico has issued 31 different 20-peso commemorative coins since 1993. Most are worth close to face value, but three of them command real premiums. Here is the honest breakdown.
August 21, 2026
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Guide
The Gold Centenario (50 Pesos): What It's Worth Today and How to Spot a Real One (2026)
The Mexican 50-peso Centenario is one of the most liquid gold coins in the world, holding 1.2057 troy ounces of pure gold. Here is what it's actually worth today and how to avoid overpaying.
August 21, 2026
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Guide
How to Buy the 12 Official 2026 World Cup Coins from Mexico (at Face Value)
Mexico's central bank released 12 official 2026 FIFA World Cup coins. The bimetallic ones trade at roughly 1 USD face value, and here is exactly where to get them without paying a reseller markup.
August 21, 2026
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Market
Mexican Coin Errors Worth Money (2026): Spot Real Errors
Most Mexican coin errors are post-mint damage, not real errors. How to spot genuine mint errors and what they are worth, from a few dollars to hundreds.
August 17, 2026
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Market
Most Valuable Spanish Coins (2026): Real Prices
The Segovia Centen of 1609 tops the list near 2 million euros. The most valuable Spanish coins with real auction figures.
August 16, 2026
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Market
Most Valuable Banknotes in the World (2026)
The 1890 Grand Watermelon note set the record at 3.29 million dollars. The most valuable banknotes in the world with real figures.
August 16, 2026
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Market
Most Valuable Ancient Coins (2026): Greek & Roman
The EID MAR aureus of Brutus hit 4.2 million dollars. The most valuable ancient coins with real auction figures.
August 16, 2026
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Market
Mexican Silver Libertad Coin: Value & Guide (2026)
The Mexican Silver Libertad holds 1 troy oz of .999 silver with lower mintages than Eagles. Its value in 2026 and the rare years.
August 16, 2026
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Market
Most Valuable US Coins (2026): Auction Records
The 1933 Double Eagle set the world record at 18.9 million dollars. The most valuable US coins with real auction figures.
August 16, 2026
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Market
Mexican Centenario 50 Pesos Gold Coin: Value (2026)
The Mexican 50 pesos Centenario holds 1.2057 troy oz of gold and trades near melt. What it is worth in 2026 and how to buy it right.
August 16, 2026
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Market
Most Valuable Mexican Coins (2026): Are Yours Worth Money?
Most Mexican coins are worth a few dollars, but a 1538 8 Reales sold for 528,000 dollars. The most valuable Mexican coins with real auction prices in USD.
August 16, 2026