1/4 Onza Libertad Silver Proof 2011: Value & Prices

If you inherited or found a 2011 quarter-ounce Libertad Proof, here is the fast answer: this is a genuinely low-mintage silver coin, only 5,000 struck, and that scarcity puts it well above its melt value. In 2026, a nice example typically trades in the low-to-mid hundreds of USD, not thousands, and the Proof finish is the reason.

What you actually have

The "Onza Libertad" (Spanish for "Liberty Ounce") is Mexico's flagship silver bullion series, struck by the national mint and issued through Banco de México (Banxico), the central bank. Your coin is the 1/4 ounce (quarter-ounce) version from 2011, and it carries a Proof finish: mirror-like fields with frosted, matte-finish design elements. Proof coins are made for collectors, not for circulation, which is why they command a premium over regular bullion.

Exact specifications, which matter for authentication:

• Metal: silver, .999 fine (99.9% pure)
• Weight: 10.38 grams
• Diameter: 30.52 millimeters
• Edge: reeded (grooved)
• Mintage: 5,000 coins
• Series: Onza Libertad

That 5,000 mintage is the headline. Compared to the millions of standard Libertad bullion ounces struck in many years, 5,000 is a small run, and quarter-ounce Proofs in this era were made in limited numbers. Low supply plus steady collector demand is what lifts this piece above the value of the silver inside it.

What it's worth in 2026

Two things set the price: the silver content (a hard floor) and the collector premium for the Proof finish and low mintage.

The quarter-ounce holds about 0.25 troy ounces of pure silver, so its melt value moves with the silver spot price, usually somewhere between 7 and 10 USD in metal alone. But no one sells a 5,000-mintage Proof for melt. The real market for this coin sits well above that floor.

Coin	Year	Condition	Typical value (USD)
1/4 oz Libertad Proof	2011	Loose, handled	60 to 120
1/4 oz Libertad Proof	2011	With original Banxico packaging	120 to 250
1/4 oz Libertad Proof	2011	Graded gem (PF69/PF70)	200 to 400+

These are collector-market ranges, not fixed prices. Two factors swing them hard:

1. Original packaging. The Banxico capsule and box matter a lot to buyers. A coin still sealed in its original presentation packaging can be worth double a loose, fingerprinted example.
2. Grade. A coin certified by NGC or PCGS at PF69 or PF70 (near-perfect to perfect Proof) sells for a clear premium over an ungraded coin, because the buyer knows exactly what they are getting.

Don't fall for the "worth thousands" claims

Some listings price loose, scratched Libertad quarter-ounces like museum pieces. They are not. This coin is scarce, not legendary. A handled example with fingerprints or hairline scratches on the mirror fields loses much of its Proof premium, because collectors buy Proofs for their flawless surfaces. If yours has been rubbed or cleaned, expect the lower end of the range.

The genuine value ceiling here is a certified PF70 in original packaging, and even that lands in the hundreds, not the thousands. Anyone quoting you four figures for an ordinary 2011 quarter-ounce is fishing.

How to tell if yours is genuine

Because this is a precious-metal coin, counterfeits exist. Check the basics yourself before you trust any offer:

• Weigh it. Use a jewelry scale. It should read very close to 10.38 grams. Fakes are commonly off.
• Measure it. Diameter should be 30.52 millimeters. Use calipers.
• Inspect the finish. A real Proof has deep mirror fields and crisp frosted devices. Flat, dull relief or mushy detail is a warning sign.
• Be suspicious of cheap offers. Anything priced near or below the value of the silver is a red flag.

For a serious sale, third-party certification from NGC or PCGS removes all doubt and usually pays for itself in the higher price a graded coin brings. If you want a second opinion first, our coin grading guide walks you through assessing condition.

Where to sell it

To sell a 2011 1/4 oz Libertad Proof for a fair price:

• A verified coin dealer. The Pesoteca dealer directory lists shops by city that will appraise your coin on the spot.
• The Pesoteca buy-sell forum. The collector marketplace connects you directly with people who want exactly this piece, often at better prices than a dealer's buy rate.

Before you list anything, photograph the obverse, reverse, and edge in good light, note whether you have the original packaging, and compare your grade against the ranges above. Skip dumping it to the first buyer on a general Facebook group; a low-mintage Proof deserves a buyer who knows what it is.

Have the 2011 quarter-ounce Proof or another piece from the Libertad series and not sure what grade it falls in? Post your photos on the Pesoteca forum and let collectors help you pin down the value before you sell.

1/4 troy oz silver Libertad 2011 Proof

This piece is the 1/4 troy oz silver Onza Libertad, struck by the Mexican Mint in 2011 in its Proof version.

Technical data. It contains 7.775 g of pure silver at .999 fineness and measures 27 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, along with other historical coats of arms as an identity mark of the family.

Role within the set. It is the lower-middle fraction of the set. Its size lets you appreciate the engraving of the Angel and the Coat of Arms without reaching the price of the full ounce. A good choice for those building the complete set by year without decapitalizing on every piece.

Context of the year. In 2011 Felipe Calderón Hinojosa was in office. Silver reached an intraday high near 49 USD per troy ounce in April, close to the historic Hunt record of 1980. It closed the year at 28.18 USD.

Proof finish. The Proof finish, also known as mirror, is achieved by polishing the dies to a specular shine in the fields, while the reliefs are frosted by micro-sandblasting. The piece comes off the press ready for display: it is not touched in the open air nor handled without gloves. Banxico delivers it in a sealed plastic capsule with an individually numbered certificate of authenticity. The Proof run is always far below that of the regular finish of the same year, and its price on the secondary market is usually between 40% and 80% above the equivalent BU version.

Mintage. Banxico reported in its official tables a mintage of 3,140 pieces for this combination of fraction, year, and finish. That number is the basis for measuring the piece's relative scarcity within the program.