Mexico • 1 peso
A matching Mexican .300 silver peso dated 1950 contains 0.1286 reference fine silver troy ounce. Actual issue years are 1950. The representative photograph is a 1950 coin. Confirm the full denomination, date, design, nominal 13.33 g weight and 32 mm diameter before counting a specimen; appearance alone cannot establish authenticity.
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.
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.
Formula: specified fine-metal troy ounces × quantity. Dollar melt value additionally requires an approved current metal price.
The eagle-left national arms and ESTADOS UNIDOS MEXICANOS legend identify the Mexican issuer. The emblem is reused across multiple peso standards, so it must be matched with the portrait, date and denomination on the opposite face.
The reference describes an armored bust viewed three-quarter left. The representative source identifies José Morelos and records 1 PESO, 1950 and Mo. This view differs from the right-facing portrait of the earlier .500 peso.
The single 1950 KM 457 issue follows the 14 g, .500 silver KM 456 peso. This 13.33 g, .300 coin contains less nominal silver and has a changed portrait view despite retaining a 32 mm diameter. The later 16 g, .100 Morelos peso belongs to a separate standard.
Identify both faces and read the complete 1 peso denomination and date. The included standard has 13.33 g nominal gross mass, 0.3 silver fineness and 32 mm diameter. 1947–1949 .500 pesos, 1957–1967 .100 pesos, earlier Liberty-cap pesos and patterns are excluded. Wear may reduce measured mass; a magnet, bright surface or photograph alone cannot determine precise alloy. Keep an uncertain specimen separate until its type is verified.
The calculator uses the reference’s designated 0.1286 fine silver troy ounce for each matching coin. Three coins contribute 39.99 nominal gross grams and 0.3858 reference fine silver troy ounces. Gross grams include alloy and must not be treated as pure silver grams. Troy and avoirdupois ounces are different units. Dollar melt pricing is unavailable until an approved provider supplies a current market quote; no missing quote is shown as zero.
Specific annual years are 1950. The inspected matching type supplies 1950 as its sole annual row. No 1949 or 1951 issue is inferred. Patterns and off-metal pieces need independent attribution; an ordinary date cannot establish their alloy.
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.
A representative 1950 photograph can illustrate an included design but cannot certify another specimen or assay its silver. Supply complete obverse, reverse and edge photographs with measured weight and diameter for identification. Patterns, plated pieces, cast copies and uncertain regional issues require separate investigation. The pictured faces do not independently prove an unseen edge or finish.
Sort 1 peso pieces by actual type, issue year and composition before adding quantities. Keep different standards and uncertain coins in separate groups. CashForCoins’ existing photo-appraisal link can carry the selected coin and quantity into an enquiry. Authentication, condition and collector demand may affect an actual offer alongside metal; this educational calculator is not a buying bid.
The designated reference World Silver melt reference supplies 13.33 g gross mass, 0.3 silver fineness and 0.1286 reference fine silver troy ounce. Matching dated KM 457 records supply actual annual rows, 32 mm diameter, designs and mint notes. Thickness and the identities of remaining alloy metals are not independently verified. Dates are read from matching annual rows rather than inferred from a broad melt-group heading. The reference valuation tables, mintages and articles are not republished. The proposed main obverse/reverse photographs are credited to Numismatica Quetzalcoatl under CC BY 4.0 on Numista; unrelated edge and comparison photos 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.
Content maintained by CashForCoins. Last substantive record update: 2026-10-12. Report a specification or attribution issue through our contact page.
Photo credits and rights on the linked coin profile.
Mexico • 72% silver; remaining alloy metals not independently verified
Issue years: 1920–1927, 1932–1935, 1938, 1940, 1943–1945
Fine silver: 0.385600 troy oz
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