1/20 oz Silver Libertad 2004: Value & Prices

If you inherited a tiny silver coin from Mexico stamped "1/20" with a winged angel on one side, you have a fractional Onza Libertad. In 2026, a 2004 1/20 oz Silver Libertad typically sells for about USD 15 to 60, more than its silver content because the mintage was low: only 35,000 pieces.

That premium over metal value is the whole story here. This is a small coin (1.5552 grams of pure silver, less than 1/16 of an ounce), so the silver inside is worth only a couple of dollars. What collectors actually pay for is the low production number and the condition of your specific coin.

What this coin is

The Onza Libertad is Mexico's flagship modern bullion and collector silver series, minted by Banco de México at the Casa de Moneda de México (mint mark "Mo"). It comes in several sizes. Yours is the smallest: the 1/20 ounce fraction.

Quick specs, straight from Banco de México:

• Metal: .999 fine silver (pure silver)
• Weight: 1.5552 grams (1/20 troy ounce)
• Diameter: 16 mm
• Edge: reeded
• Finish: bullion (satin), the investment-grade version with an even satin surface
• Mintage: 35,000 pieces

The front (obverse) shows the Mexican coat of arms, an eagle on a cactus eating a snake, with the legend "ESTADOS UNIDOS MEXICANOS." The back (reverse) shows the Winged Victory from Mexico City's Angel of Independence monument, standing in front of the Popocatépetl and Iztaccíhuatl volcanoes, with the "Mo" mint mark and the year 2004.

What it's actually worth in 2026

Silver content sets the floor. At 1.5552 grams of .999 silver, the melt value is only a few dollars. Nobody sells these at melt, because the low mintage keeps a premium on them.

Coin	Year	Condition	Typical value (USD)
1/20 oz Silver Libertad	2004	Circulated / handled	15 to 25
1/20 oz Silver Libertad	2004	Uncirculated (BU)	30 to 45
1/20 oz Silver Libertad	2004	Certified high grade (MS69/70)	50 to 90+

These are collector-market ranges, not a fixed price. The 1/20 oz fractions in general trade at strong premiums because they were minted in far smaller numbers than the 1 oz coins. A slabbed (professionally graded and sealed) example in top grade sits at the high end; a loose coin with fingerprints or spots sits at the low end.

The myth: "it's tiny silver, so it must be worthless"

The opposite is true here. Size does not decide value in this series, mintage does. The full 1 oz Libertad of many years had millions struck; this 1/20 oz had 35,000. Scarcity is why a coin holding two dollars of silver can sell for 40 or 50 dollars.

The reverse myth also circulates: that any Libertad is "worth thousands." It isn't. Only specific low-mintage proof issues and rare early dates reach into the hundreds or more. A standard 2004 bullion 1/20 oz is a solid, collectible coin, not a jackpot.

How to tell if yours is genuine

Because it's a precious-metal coin, fakes exist. Check two things first:

• Weight: it must be 1.5552 grams. Use a jewelry scale. Fakes are almost always off.
• Diameter: it must be 16 mm. Use calipers.

Beyond that, look for flat, mushy detail, wrong color, or uneven surfaces. Any offer priced well below the metal value is a red flag. For a coin this small and valuable per gram, third-party grading (NGC or PCGS) both authenticates and boosts resale value, and it's worth the fee if you have a clean, high-grade example.

Where to sell it

• A verified coin shop from the Pesoteca directory will appraise it on the spot, by city, without middleman markup.
• The Pesoteca buy-and-sell forum connects you directly with collectors, who usually pay more than a shop for the exact date and grade they need.

Before you sell, photograph the obverse, reverse, and edge, and match the value ranges above to your coin's condition. Don't dump it to the first bidder on social media, and never buy or sell sight-unseen: confirm the piece and its weight before any money moves.

If you have a full set of Libertad fractions or a date you can't identify, post clear photos in the Pesoteca forum and let the community weigh in before you decide what to do with it.

1/20 troy ounce Libertad silver 2004 Regular BU

This piece is the silver 1/20 troy ounce Onza Libertad, struck by the Mint of Mexico in 2004 in its Regular BU version.

Technical data. It contains 1.55 g of pure silver fineness .999 and measures 16 mm in diameter. On the reverse it bears the effigy of the Angel of Independence, chosen by Banxico as the official symbol of the series since 1981. On the obverse appears the National Coat of Arms in its pre-1969 version, alongside other historic coats of arms as an identity mark of the family.

Role within the set. It is the smallest fraction of the set. It serves as an entry piece, gift, or first contact with the series: it costs little per example but carries the highest premium of the family over the value of the silver it contains, because the die cost is spread across fewer grams.

Context of the year. In 2004 Vicente Fox Quesada was in office. The first physical silver ETF in the United States was launched, the iShares Silver Trust. International demand for bullion silver took off.

Regular BU finish. The Regular finish, cataloged by Banxico as satin or BU, is obtained with dies without special polishing. The result is an even matte luster across the entire surface, without mirror contrast between fields and relief. It is the traditional bullion finish: bought for its weight in pure silver plus a modest die premium. It is the version hunters seek to build the complete set by year without decapitalizing on every piece.

Mintage. Banxico reported in its official tables a mintage of 3,802 pieces for this combination of fraction, year, and finish. That number is the basis for measuring the relative scarcity of the piece within the program.