Mexico • 25 pesos

Mexican .720 Silver Twenty-Five Pesos — 1968 and 1972

Matching Mexican .720 silver 25 pesos contain .5208 reference fine silver troy ounce each. This guide covers two actual issue years: 1968 and 1972. They share 22.5 g nominal gross mass and 38 mm diameter but have different commemorative designs. The proposed representative main photographs depict the 1972 Benito Juárez coin; they do not illustrate or authenticate a 1968 Olympic subtype.

1972 Mexican .720 Silver Twenty-Five Pesos — 1968 and 1972 obverse: Mexican national arms
Obverse — Genuine 1972 representative; type-specific dates, designs, alloys and finishes still require attribution.
Numismatica Quetzalcoatl / Numista / CC BY 4.0; Full observed source face retained; WebP conversion only; no enlargement, retouching or synthetic reconstruction · Image source · CC BY 4.0
1972 Mexican .720 Silver Twenty-Five Pesos — 1968 and 1972 reverse: Benito Juarez portrait, 25 pesos and 1972
Reverse — Genuine 1972 representative; type-specific dates, designs, alloys and finishes still require attribution.
Numismatica Quetzalcoatl / Numista / CC BY 4.0; Full observed source face retained; WebP conversion only; no enlargement, retouching or synthetic reconstruction · Image source · CC BY 4.0

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
25 pesos
Composition
72% silver; remaining alloy metals not independently verified
Gross weight (grams)
22.5
Fineness
0.72
Fine-metal weight (troy oz)
0.5208
Diameter (mm)
38
Mint
Mint marked Mo (the reference dated reference)
Mint mark
Mo
Restrikes
Patterns, regional issues, tokens, counterfeits and later replicas excluded
Issue years
1968, 1972

Exact reviewed annual issue dates for this assigned metal/weight scope. Mint, design, overdate and finish combinations remain type-specific; broader headings do not fill absent annual rows. Source precision exceptions and separate alloy standards are explained in the guide.

Source precision
The designated reference World Silver melt table and four matching dated types agree on 22.5 g gross mass, .720 silver fineness and .5208 fine silver troy ounce. The dated records supply 38 mm diameter and actual issues 1968 and 1972. KM 479.1–479.3 are 1968 Olympic designs; KM 480 is the 1972 Juárez design. No 1969, 1970 or 1971 issue is inferred. Thickness, edge details and the identities of remaining alloy metals have not been independently established for every included type.

Calculate this coin’s metal content

One coin contains 0.5208 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 reference describes the national-arms side of each included type as an eagle facing left. The pictured 1972 photograph has ESTADOS UNIDOS MEXICANOS around the arms. The national emblem is shared with many denominations; pair it with a matching dated reverse and nominal specifications before determining silver content.

Reverse: identify the back

The 1972 KM 480 reverse has a facing bust of Benito Juárez and the 25 peso denomination, .720 fineness, Mo mark and 1972 date. The 1968 KM 479 types instead have Olympic rings below a dancing figure facing left, with a numeral design behind. Do not describe the pictured 1972 portrait as an Olympic design or assign a 1968 ring variety from these photographs.

History and purpose

The 1968 issues commemorate the Summer Olympics in Mexico City, while the 1972 Juárez issue has a separate commemorative subject. The intervening calendar years are absent from the inspected matching records. Their shared mass and silver fineness allow the same nominal fine-metal calculation, while design, date and die variety remain useful identification and collector distinctions.

How to identify this variant

Identify a 25 peso denomination and an included 1968 or 1972 design. The matching nominal standard is 22.5 g, .720 silver and 38 mm. Separate later base-metal 25 pesos, patterns, tokens and replicas. An engraved fineness or date is an identification clue rather than an assay or guarantee of authenticity. Wear can reduce measured weight; suspected plated or cast pieces need individual investigation.

Understanding its metal content

The designated reference supplies .5208 fine silver troy ounce per matching 25 peso coin. Three matching pieces contribute 67.5 nominal gross grams and 1.5624 fine silver troy ounces. The total alloy weight is distinct from pure-silver weight. The calculator does not supply a dollar melt price without an approved current quote, and it does not determine grade, collector demand or an actual offer.

Dates, varieties and composition changes

Actual issue years are 1968 and 1972. The reference identifies 1968 TypeI (KM 479.1) with aligned rings, TypeII (KM 479.2) with a low center ring and TypeIII (KM 479.3) with low center rings and either a long curved or normal snake tongue. KM 480 lists 1972 Mo. These design distinctions do not create different silver calculations where the matching standard agrees. No unverified proof finish or intervening year is asserted.

Melt value versus collector value

Preserve each specimen’s actual date, design attribution, finish, original surfaces and provenance. A date, die variety or condition may affect collector interest independently of silver content. The calculated metal amount does not establish rarity, grade or an offer. Avoid cleaning or polishing and retain any reputable certification rather than interpreting shine as proof manufacture.

Authenticity and condition

The licensed 1972 pair illustrates one included Juárez design. It cannot establish a 1968 Olympic subtype, unseen edge, finish or another coin’s alloy. Provide complete obverse, reverse and edge photographs plus measured mass and diameter for attribution. Do not clean uncertain pieces or infer proof manufacture from a reflective surface.

Selling this coin

Group 1968 Olympic and 1972 Juárez 25 pesos separately when retaining collector attributions, even though matching pieces share the nominal metal calculation. Keep nonmatching dates, patterns and later base-metal coins outside this quantity. CashForCoins’ existing photo-appraisal form can carry the chosen coin and quantity into an enquiry; authentication and collector interest may affect an actual buying offer.

Sources and calculation methodology

The designated reference World Silver melt table and four matching dated types agree on 22.5 g gross mass, .720 silver fineness and .5208 fine silver troy ounce. The dated records supply 38 mm diameter and actual issues 1968 and 1972. KM 479.1–479.3 are 1968 Olympic designs; KM 480 is the 1972 Juárez design. No 1969, 1970 or 1971 issue is inferred. Thickness, edge details and the identities of remaining alloy metals have not been independently established for every included type. The original guide uses dated annual and design records rather than republishing the reference valuations or mintages. The pictured 1972 main photo pair is credited to Numismatica Quetzalcoatl under CC BY 4.0 on Numista. Other example and auction photographs are excluded.

The actual dated representative photographs and independent reuse permissions were inspected. Complete faces are retained, with WebP conversion and no enlargement, retouching or synthetic reconstruction; joined source images are split with complete rims. These photographs do not assay another specimen. Actual staging rendering and calculator acceptance are separately recorded.

Common questions

Which actual years does this 25 peso guide cover?1968 and 1972. The matching reference records do not establish 1969, 1970 or 1971 issues.
How much silver is in three matching 25 pesos?1.5624 reference fine silver troy ounces and 67.5 nominal gross grams. This calculation does not authenticate the coins or determine collector value.
Are all 1968 Olympic 25 pesos the same variety?No. The reference distinguishes aligned rings, a low center ring, and a third type with low rings and snake-tongue distinctions. All inspected matching types use the same 22.5 g/.720/.5208 nominal calculation.

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.

Related coins

Have this coin or a collection?

Photographs can help identify your coin. An appraisal may consider authenticity, condition and collector demand as well as metal content.

Request a photo appraisal View current silver coin buying information
Verified by MonsterInsights