Mexico • 1/4 onza

Mexican Silver Libertad Quarter-Ounce — 1991–1995

This reviewed Mexican silver Libertad 1/4 onza type contributes 0.2497 reference fine silver troy ounce at 7.7758 g/.999. Specific verified issue years:1991,1992,1993,1994 and 1995. Its matching diameter is 25 mm. Read the actual fraction, full date, silver legend and mintmark before counting a holding; a similar Victory design is used on other weights and gold pieces.

Obverse of a Mexican 1991 quarter-ounce silver Libertad showing the national eagle and snake.
Obverse — 1991 specimen, obverse and reverse. Images: Banco de México, Colección Numismática (inventory 17673). Banco records this individual specimen at 7.82 g and 24.98 mm. Preserve the mapped the reference nominal 7.7758 g, 0.999 fineness and 0.2497 reference fine ounce. These observed specimen measurements are not an additional issue variant and do not populate an otherwise unestablished family dimension. This1991 photograph is a regular UNC specimen, not a proof; later included proof issues are separately identified.
Images: Banco de México, Colección Numismática, inventory 17673, 1991; reproduced under its published collection use policy. · Image source · Banco de México published collection reproduction permission
Reverse of a Mexican 1991 quarter-ounce silver Libertad showing Winged Victory, its fraction, date and .999 marking.
Reverse — 1991 specimen, obverse and reverse. Images: Banco de México, Colección Numismática (inventory 17673). Banco records this individual specimen at 7.82 g and 24.98 mm. Preserve the mapped the reference nominal 7.7758 g, 0.999 fineness and 0.2497 reference fine ounce. These observed specimen measurements are not an additional issue variant and do not populate an otherwise unestablished family dimension. This1991 photograph is a regular UNC specimen, not a proof; later included proof issues are separately identified.
Images: Banco de México, Colección Numismática, inventory 17673, 1991; reproduced under its published collection use policy. · Image source · Banco de México published collection reproduction permission

When a fresh spot bid is available, melt values use fine-metal content × spot bid. CashForCoins guide buying offers use the separately configured percentage for each metal. Selected rare/numismatic coins require an appraisal. Dollar amounts remain unavailable when a fresh quote or buying percentage is missing.

Verified coin specifications

Country
Mexico
Face denomination
1/4 onza
Composition
99.9% silver; remaining alloy metals not independently verified
Gross weight (grams)
7.7758
Fineness
0.999
Fine-metal weight (troy oz)
0.2497
Diameter (mm)
25
Mint
Mexico City (Mo)
Mint mark
Mo
Restrikes
Patterns, replicas and later reproductions excluded
Issue years
1991–1995

Actual source-reviewed issue years for this exact denomination, design and metal/weight scope. Overdates, mint combinations and proof availability remain type-specific; specimen photos and measurements do not certify other examples.

Source precision
The designated NGCworld-silver melt table omits this fractional Libertad. Exact dated KM544 supplies7.7758g/.999/0.2497fine silver troy ounce and25mm. Actual annual rows support1991–1995regular coins and1992–1995proof entries; no1991proof is inferred. The named ounce fraction is a product identity, while this guide retains the rounded ASW stated by the matching NGCdated type. KM611 reports .2500oz at7.7758g and27mm. Its reported fine mass narrowly exceeds that rounded gross mass; it remains excluded. A separate2012NGCreference gives .2497oz but does not establish all later issue standards. No false new purity or mass subtype is asserted solely from a rounding difference.

Calculate this coin’s metal content

One coin contains 0.2497 troy oz of fine silver.

Formula: specified fine-metal troy ounces × quantity. Dollar melt value additionally requires an approved current metal price.

Obverse: identify the front

The inspected NGCtype describes the national arms with the eagle facing left. Keep the complete national legend and arms face in identification photographs. Fractional Libertads and other Mexican bullion sizes can have visually related arms; this face alone does not establish metal, weight or finish.

Reverse: identify the back

NGCdescribes Winged Victory on the matching KM 544 reverse. The full 1/4 onza denomination or weight inscription, date, fineness and Mo attribution must be kept visible. A Victory motif cropped away from its legends can confuse gold, silver and different ounce fractions. A genuine matched photo pair for this dated type is still awaiting independent photographic permission and identity review.

History and purpose

The inspected KM 544 table covers the earlier 1991–1995 dated family. Later numbered families must retain their own dated standards, dimensions and design attribution. A product described as an ounce fraction need not have the same displayed ASW precision in every reference. No continuous 1991-to-current issue span is asserted from this first verified table.

How to identify this variant

Match the silver fraction 1/4 onza, the actual 1991–1995 date and Mo mintmark to KM 544. Its NGCnominal references are 7.7758 g and 25 mm with .999 fineness. No edge or thickness is independently approved from the inspected type. Photographs and dimensions are identification evidence rather than assay or authentication. Similar gold fractions are outside this silver profile.

Understanding its metal content

One matching coin contributes 0.2497 reference fine silver troy ounce; three contribute 0.7491 fine silver ounces and 23.3274 nominal gross grams. The calculator retains the reference’s stated ASW rather than replacing it with the marketed ounce fraction or a mass-derived value. Wear, assay and collector value are distinct from nominal content. Dollar melt pricing is unavailable until an approved provider supplies it.

Dates, varieties and composition changes

Specific source-supported issue years:1991–1995. The reference lists regular Mo coins for each of these five years and separate proof rows for 1992,1993,1994 and 1995. The table does not establish a 1991 proof. A proof entry describes a separately attributed manufacture; a shiny or polished coin is not automatically a proof. Retain date, fraction, mintmark and documented finish for each specimen.

Melt value versus collector value

Preserve genuine surfaces, original packaging, provenance and any reputable certification. A verified proof finish, date or other supported variety may affect collector value beyond nominal silver. Do not assign a proof or unusual variety from lighting alone. Separate original mint finish from polishing, cleaning or later surface treatment.

Authenticity and condition

Provide complete obverse, reverse and edge photographs with measured mass and diameter where available. The 7.7758 g/25 mm references do not authenticate a plated piece or guarantee .999 fineness. Keep all legends and the date visible; replicas, altered dates and unexpectedly light specimens require individual examination.

Selling this coin

Sort the matching 1/4 onza silver Libertads separately from other fractions, gold Libertads and unresolved later references. Include the exact date and supported proof attribution in the established CashForCoins photo-appraisal enquiry. The selected quantity supplies collection context and is not an automatic purchase offer.

Sources and calculation methodology

The designated reference world-silver melt table omits this fractional Libertad. Exact dated KM 544 supplies 7.7758 g/.999/0.2497 fine silver troy ounce and 25 mm. Actual annual rows support 1991–1995 regular coins and 1992–1995 proof entries; no 1991 proof is inferred. The named ounce fraction is a product identity, while this guide retains the rounded ASW stated by the matching reference dated type. KM 611 reports .2500 oz at 7.7758 g and 27 mm. Its reported fine mass narrowly exceeds that rounded gross mass; it remains excluded. A separate 2012 the reference gives .2497 oz but does not establish all later issue standards. No false new purity or mass subtype is asserted solely from a rounding difference. Public reference specification, design and actual annual rows were inspected on 2026-10-12. No prices or mintages are republished. The genuine Banco de México photographs represent regular 1991 examples, with institutional source and published collection permission attributed. They do not illustrate the separately listed proof finishes or assay another specimen.

Common questions

How much silver is in three matching1/4 onza Libertads?Three matching coins contribute0.7491reference fine silver troy ounces and23.3274nominal gross grams. These reference figures are not an assay, authentication or purchase offer.
Is a1991proof included in this verified scope?No. The inspected table lists regular1991coins and proof entries for1992–1995. Missing finish combinations are not invented from a broad series span.
Can I apply this earlier calculator to every later Libertad?No. Later dated types, reported fine-weight precision, dimensions and issue years require separate matching review. A shared ounce-fraction name does not resolve a source discrepancy.

References

Issue-year references

Content maintained by CashForCoins. Last substantive record update: 2026-10-12. Report a specification or attribution issue through our contact page.

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