100 Pesos Silver Coin (2007): 180th Anniversary of the Union

If you inherited a large silver Mexican coin marked "100 pesos" and dated 2007, here is the honest answer: most examples trade for their silver content plus a modest collector premium, usually in the range of 25 to 60 USD depending on condition and packaging. This is not a rare rarity worth thousands. It is a modern commemorative bullion piece with a solid metal floor.

What this coin actually is

This is one coin from a large series Mexico issued in 2007 to mark the 180th anniversary of the Union of the States of the Mexican Republic (in Spanish, "180 Aniversario de la Unión de los Estados de la República Mexicana"). Each state got its own reverse design, so there are many variants under the same 100 pesos face value and the same 2007 date.

The key fact for value: these are struck in .999 fine silver. That gives every genuine example a floor at melt value, no matter the design.

Spec	Detail
Face value	100 pesos
Year	2007 (single year of issue)
Metal	.999 fine silver
Weight	33.967 grams (about 1.09 troy oz)
Diameter	39 mm
Edge	Interrupted reeded edge
Mint mark	Mo (Casa de Moneda de México)

What it's worth in USD

Because the coin holds about 1.09 troy ounces of pure silver, its bottom value tracks the silver spot price. At recent silver levels that melt floor alone is roughly 30 to 35 USD. On top of that, collectors pay a premium for eye appeal, original packaging, and certain state designs that are harder to find.

• Circulated or handled, no packaging: melt value, roughly 30 to 40 USD.
• Uncirculated, clean surfaces: 40 to 60 USD.
• In the original Banxico blister pack: add 10 to 20 USD over a loose example.
• Certified high grade (NGC/PCGS MS68 or higher): premiums can reach 80 to 150 USD for the scarcer state designs, though most graded examples stay well under that.

The design on the reverse matters. Some state coats of arms and motifs were saved in fewer numbers than others, so a state that collectors chase can pull a higher premium than a common one at the same grade.

The myth to kill

A large, heavy silver coin dated 2007 looks important, and search results full of "rare Mexican coin" headlines make owners expect a windfall. For this issue that expectation is wrong. This is a modern bullion commemorative, not a scarce classic. The value is real but modest: think silver plus a small collector bump, not a life-changing sum. Anyone quoting thousands of dollars for an ordinary example is guessing or selling.

How to tell if yours is genuine

Counterfeits of silver commemoratives exist, so run these checks before you buy or sell:

1. Weight. A genuine coin weighs 33.967 grams. Use a scale accurate to 0.01 g. If yours is light, be suspicious.
2. Diameter. It should measure 39 mm.
3. Relief. Compare the sculptural detail of the national coat of arms against official Banxico images. Fakes tend to look flat and mushy in the fine detail.
4. Edge. Look for the interrupted reeded edge described above.
5. Certification. For any example you think is worth over 60 USD, professional grading from NGC or PCGS is the definitive proof of both authenticity and grade. See our coin grading guide to judge condition first.

Where to sell it in 2026

Because this is a precious metal coin, sell only where the buyer can verify weight and see the coin in hand:

• A verified numismatic shop from the Pesoteca directory will appraise it on the spot and pay close to fair value.
• The Pesoteca buy/sell forum connects you directly with collectors, which often beats a dealer's buyback price.
• General marketplaces work but attract the most fakes, so always demand photos of the edge and the weight before you pay.

Photograph the obverse, reverse, and edge, confirm your grade against the ranges above, and do not dump it on the first lowball offer.

Have one of these sitting in a drawer, or a full set of the state designs? Post clear photos in the Pesoteca forum and the community will help you pin down the exact state variant and what it should fetch.