Mexico • 5 Mexican pesos

Mexico 5 peso gold

Mexico 5 peso gold in the KM464 .900 standard contains 0.1206 reference fine gold troy ounce and has a nominal gross mass of 4.1666 grams in the reference melt table. Its confirmed dated issues are 1905–1907, 1910, 1918–1920, 1955. Use the exact design and denomination before counting; other peso standards and later restrikes require the distinctions below.

Mexico 5 peso gold obverse showing Mexican national arms
Obverse — Official issuer denomination reference; 1955 face date; not proof of manufacture year; other dates and finishes vary.
Banco de México; official reference photograph; resized WebP; source linked · Image source · Banco de México reproduction permission with attribution
Mexico 5 peso gold reverse showing Hidalgo and 1955
Reverse — Official issuer denomination reference; 1955 face date; not proof of manufacture year; other dates and finishes vary.
Banco de México; official reference photograph; resized WebP; source linked · Image source · Banco de México reproduction permission with attribution

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
5 Mexican pesos
Composition
90% gold; balance alloy metal
Gross weight (grams)
4.1666
Fineness
0.9
Fine-metal weight (troy oz)
0.1206
Diameter (mm)
19
Edge
Inspect the actual rim; face photographs do not show the edge
Mint
Mexico City; Mo
Mint mark
Mo
Restrikes
Official retained-date restrikes; inspect date and finish
Issue years
1905–1907, 1910, 1918–1920, 1955

These are KM464 Hidalgo .900 face dates, with 1907/6 and 1918/7 overdates. Later restrikes can retain 1955. The earlier .875 five-peso standard also reaches 1905 but has different mass and gold content; identify design and composition together.

Source precision
The reference’s owner-selected world gold melt row controls 4.1666 g gross, .900 fineness and 0.1206 fine gold troy ounce. Banco de México displays 0.12057 fine ounce and supplies the 19 mm diameter. These published amounts have different rounding; the issuer display does not silently replace the selected reference.

Calculate this coin’s metal content

One coin contains 0.1206 troy oz of fine gold.

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

Obverse: identify the front

The official Banco de México photograph shows the Mexican national arms, with an eagle, snake and cactus, under ESTADOS UNIDOS MEXICANOS. Compare the complete arms and the opposite face together. The national emblem also appears on other denominations and alloys; it cannot establish metal content by itself.

Reverse: identify the back

Miguel Hidalgo’s portrait faces left. CINCO PESOS follows the rim, with 1955 to the right of the portrait on the official reference. Read the full denomination rather than identifying the coin solely by the portrait: the ten- and two-and-a-half-peso gold pieces also depict Hidalgo.

History and purpose

The .900 Hidalgo five-peso standard begins in 1905. The earlier .875 five-peso gold standard is a different, substantially heavier coin. Because both standards reach 1905 in the reference melt table, identifying the date alone cannot settle which gold quantity applies.

How to identify this variant

Confirm CINCO PESOS and the Hidalgo portrait, then compare 19 mm nominal diameter and 4.1666 g gross mass. The reference’s older .875 five-peso standard instead weighs 8.46 g and carries 0.238 reference gold troy ounce. A similar denomination or a 1905 date cannot justify using the lighter Hidalgo calculator.

Understanding its metal content

Three correctly identified matching coins total 0.3618 fine gold troy ounces using the reference’s reported AGW. Gross mass includes alloy metal. A separate mass-times-fineness calculation uses the displayed 4.1666 g and .900 inputs; its rounding can differ from reported AGW. Neither calculation measures wear or tests an individual coin, and an uncertain or differently specified piece should not be included.

Dates, varieties and composition changes

The reference’s dated Hidalgo list covers 1905–1907, 1910, 1918–1920 and 1955. Catalogued overdates include 1907/6 and 1918/7. The long gap before 1955 is not continuous annual production. Later restrikes retain the 1955 design date; the reference separately records matte restrikes in 1996.

Melt value versus collector value

Keep the actual date, any overdate detail, finish, packaging and ownership records with the coin. A documented original issue and a later retained-date restrike can require different collector assessments despite a shared metal standard. Neither the nominal gold amount nor an attractive reference photograph supplies a grade or guarantees a premium. Preserve the existing surfaces for examination.

Authenticity and condition

Photograph both faces and the complete rim in good light without polishing or scratching the coin. Compare the denomination, date, design and nominal dimensions, and keep any holder or certificate associated with its actual specimen. A correct-looking face or plausible mass is only an identification check. Leave an uncertain piece outside the count until its identity and metal are examined.

Selling this coin

Sort 5-peso coins by the exact design and composition before entering quantities. Include clear face and rim photographs, the visible date and any finish or restrike evidence with the existing appraisal request. Older standards, mounted coins and pieces with uncertain identity need individual review. The reference calculation supplies a metal quantity, not a promised purchase price for an unseen coin.

Sources and calculation methodology

The reference’s owner-selected world gold melt row controls 4.1666 g gross, .900 fineness and 0.1206 fine gold troy ounce. Banco de México displays 0.12057 fine ounce and supplies the 19 mm diameter. These published amounts have different rounding; the issuer display does not silently replace the selected reference. The reference’s matching dated type and issuer references are linked separately. Dates describe confirmed face issues and explicitly documented exceptions, not continuous production between endpoints. Genuine issuer photographs are attributed and retain their original dimensions; small reference images do not certify every date or finish. Market pricing remains unavailable until a live provider is approved, so a missing dollar value is not displayed as zero.

Common questions

Do all Mexican five-peso gold coins contain 0.1206 troy ounce?

No. That the reference belongs to the .900 Hidalgo standard weighing 4.1666 g. The earlier .875 standard has different mass and fine-gold content.

Were Hidalgo five-peso gold coins issued every year from 1905 to 1955?

No. The reviewed date list has substantial gaps: 1905–1907, 1910, 1918–1920 and 1955.

Why can a five-peso gold coin have a 1955 date and a later striking year?

Official restrikes can preserve the original design date. The reference records later manufacture and a matte restrike finish; the face date alone does not identify the production year.

References

Issue-year references

Content maintained by CashForCoins. Last substantive record update: 2026-10-11. Report a specification or attribution issue through our contact page.

Related coins

Mexico 10 peso gold obverse showing Mexican national arms

Mexico 10 peso gold

Photo credits and rights on the linked coin profile.

Mexico • 90% gold; balance alloy metal

Issue years: 1905–1908, 1910, 1916–1917, 1919–1920, 1959

Fine gold: 0.241100 troy oz

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