Mexican 100 Pesos 2005 Mint Anniversary: Value & Prices 2026

How much is the 100 Pesos 2005: Mexican Mint 470th Anniversary Coin worth?

The market value of the 100 Pesos 2005: Mexican Mint 470th Anniversary Coin 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.

Description

If you inherited or found a large two-tone Mexican 100 pesos coin dated 2005, here is the straight answer: in circulated condition it is worth roughly 6 to 30 USD, and a certified uncirculated example can reach 100 USD or more. It is a modern commemorative, not a rare treasure, but it holds real collector value above its face value.

This piece marks the 470th anniversary of the Casa de Moneda de México (the Mexican Mint), the oldest continuously operating mint in the Americas, founded in 1535. In 2026 it remains a solid collector item for anyone building a set of Mexican bimetallic coins or mint anniversary issues.

What exactly you have

The coin is bimetallic: a center core of one metal surrounded by an outer ring of a contrasting color, the same construction concept as a US-style two-tone commemorative or a euro coin. It is a substantial piece, which is why people who find one assume it must be valuable.

Feature	Detail
Denomination	100 pesos
Year	2005 (single-year issue)
Weight	33.74 grams
Diameter	39 mm
Composition	Bimetallic (core and outer ring)
Theme	470th anniversary of the Mexican Mint

If your coin does not match 33.74 grams and 39 mm on a decent scale and caliper, be suspicious. Those two numbers are the fastest authenticity check you can run at home.

What it's actually worth in USD

Value on this coin is driven almost entirely by condition, not by the date. Because it was made in a single year and never truly circulated in daily change, most surviving examples are in decent shape, which keeps prices reasonable rather than sky-high.

Circulated, handled, dull: roughly 6 to 30 USD.
Brilliant Uncirculated (BU), full luster, sharp metal contrast: typically 40 to 80 USD.
Certified high grade (NGC or PCGS, MS-65 and up): can push past 100 USD to the right collector.

The exact mintage was never officially published by Banco de México (Banxico, the central bank). When a mint does not release a number, it usually points to a restricted numismatic-set release rather than mass circulation. Collector forums throw around figures, but none are confirmed, so treat any "only X ever made" claim with skepticism.

Is it rare? An honest answer

No, this is not a rare coin in the sense that drives four-figure prices. It is a modern commemorative with genuine but modest collector demand. The value it has over face value comes from its size, its two-tone construction, and its appeal to people who collect Mexican Mint anniversary pieces, not from scarcity.

Where it can jump in value is with verified mint errors: off-center strikes, die rotation, or doubled strikes. If genuine and certified, those can multiply the price. Be careful though: most "errors" people spot are post-mint damage (dings, corrosion, scratches), not factory errors. Damage lowers value; a real error raises it.

How to tell if yours is genuine

Weigh and measure it. It should be 33.74 g and 39 mm. Fakes are often off on weight.
Check the relief. Compare the detail and depth of the design against official Banxico images. Counterfeits tend to have flatter, mushier relief and weak metal contrast between the ring and core.
Inspect the edge. Bimetallic coins should have a clean, tight seam between core and ring, with no gaps.
Certify high-value pieces. If you believe you have a top-grade example or a genuine error, third-party grading from NGC or PCGS is the only definitive proof and it protects the value when you sell.

Where to sell it

For a coin in this price range, you have a few solid options:

A verified numismatic shop from the Pesoteca directory, which can appraise it on the spot with no middleman markup.
The Pesoteca buy-and-sell forum, where you deal directly with collectors who know exactly what this issue is.
Online marketplaces work, but they carry the most fakes, so as a seller expect buyers to ask for photos of the edge, front, back, and a weight reading.

Before you sell anything, photograph the obverse, reverse, and edge in good light, and check the price range on this page so you do not let it go for too little. Do not dump it on the first Facebook offer.

Got one of these in a box of inherited coins? Post clear photos on the Pesoteca forum and let collectors help you pin down the grade and a fair price.

Frequently asked questions

How much is a 2005 Mexican 100 Pesos Mint Anniversary coin worth?

It depends heavily on condition. Circulated, handled examples run roughly 6 to 30 USD. A Brilliant Uncirculated piece with full luster typically brings 40 to 80 USD, and a certified high grade (MS-65 or better from NGC or PCGS) can top 100 USD. For an exact figure on your coin, get it appraised at a formal numismatic shop.

Is the 2005 100 Pesos Mint Anniversary coin rare?

It is not rare in the record-price sense. It is a modern single-year commemorative with genuine but modest collector demand. Banxico never published the exact mintage, which suggests a limited numismatic-set release rather than mass circulation. Its value comes from size, its bimetallic build, and collector appeal, not from true scarcity.

How can I tell if my 100 Pesos Mint Anniversary coin is genuine?

It should weigh 33.74 grams and measure 39 mm; if your coin misses those numbers, be suspicious. Compare the relief depth to official Banxico images, since fakes are flatter with weak metal contrast, and check for a clean seam on the edge. For valuable examples, certification from NGC or PCGS is the definitive proof.

Where can I sell my 2005 Mexican 100 Pesos coin?

The safest routes are a verified numismatic shop from the Pesoteca directory, which appraises it on the spot, or the Pesoteca buy-and-sell forum where you deal directly with collectors. Photograph the front, back, and edge, and check the price range before selling. Avoid taking the first lowball offer on social media.

100 Pesos 2005: Mexican Mint 470th Anniversary Coin

Design