100 Pesos Carranza 1988 (Aluminum-Bronze): What It's Worth

If you inherited or found a 1988 Mexican 100 Pesos coin with a bearded man on the back, here is the honest answer: in circulated condition it is worth well under 2 USD, often only a few cents above face value once it left circulation. This is a common coin, not a rarity. The value story changes only at the top grades or with a genuine mint error.

The man on the reverse is Venustiano Carranza, a key figure of the Mexican Revolution and a former president. The "100 Pesos" face value refers to the old peso system used before Mexico revalued its currency in 1993 (knocking three zeros off). So this is not 100 modern pesos; in today's money the original face value is basically nothing.

What the 1988 100 Pesos Carranza is worth in 2026

This coin was struck in large numbers for everyday use, so survivors are everywhere. Value comes almost entirely from condition (grade), not age. Here is the realistic range:

Most coins people find fall in the first two rows. A worn 1988 100 Pesos Carranza is a pocket-change coin, not a payday. The only versions that bring real money are pristine, uncirculated pieces, ideally graded and sealed by a service like NGC or PCGS, and even those top out modestly.

The specs (use these to check yours)

Know exactly what a genuine coin should measure. Compare with a jeweler's scale and a caliper:

• Metal: Aluminum-bronze (a copper alloy, gold-yellow color). No silver, no gold. There is no melt value worth chasing here.
• Weight: 11.83 grams
• Diameter: 26.54 mm
• Edge: Reeded (grooved)
• Mint mark: "Mo" for the Casa de Moneda de México (Mexico City Mint)
• Obverse: Mexican national coat of arms (eagle on a cactus) with the legend "ESTADOS UNIDOS MEXICANOS"
• Reverse: Portrait of Carranza, face value "100", date "1988"

This piece belongs to the pre-1992 modern era of Mexican coinage.

Is it rare? Honestly, no

High mintages and heavy circulation mean these are common. If you are picturing an auction record, that is not this coin. What we see at auction and in dealer inventories confirms it: the 1988 100 Pesos Carranza is a filler coin unless it is truly uncirculated or a verified error.

Do not confuse it with high-value Mexican coins like the gold Centenario (50 Pesos gold, which carries over an ounce of gold) or classic silver pesos. Those trade in the hundreds or thousands of dollars. An aluminum-bronze 100 Pesos from 1988 does not.

What about "error" coins worth a fortune?

Genuine minting errors (off-center strikes, die rotation, double strikes, real die varieties) can multiply the value of a coin. Here is the catch: most "errors" people post online are post-mint damage, dings, corrosion, or wear, not factory mistakes. Those add nothing. A real, verifiable error is uncommon and needs a knowledgeable eye. If you think you have one, photograph the obverse, reverse, and edge and post it in the Pesoteca forum for the community to review before you get your hopes up.

How to tell if yours is genuine

1. Weigh it. It should hit 11.83 grams. A scale that reads to 0.01 g helps.
2. Measure the diameter. 26.54 mm with a caliper.
3. Check the strike. Genuine coins have crisp relief. Flat, mushy detail or uneven color often signals a fake or heavy wear.
4. Look at the edge. It should be evenly reeded.

Counterfeits of a common, low-value coin like this are rare (there is little profit in faking it), but off-weight or off-diameter pieces should raise a flag.

Where to sell it

Because the value is low, keep your expenses low too:

• A verified dealer from the Pesoteca shop directory can grade and quote it on the spot.
• The Pesoteca buy/sell forum connects you with collectors directly.
• For a genuinely uncirculated or possible-error piece, consider certification (NGC/PCGS) before selling; the slab is what unlocks the higher end of the range.

Before you sell, take clear photos of both sides and the edge, and compare your grade against the ranges above and the coin grading guide. Do not dump it to the first buyer on social media.

Have a 1988 Carranza you think might be an error, or a whole box of inherited Mexican coins to sort out? Post your photos in the Pesoteca forum and let the community weigh in.

Mexican circulating peso coins from the second half of the 20th century were struck in alloys that changed according to the cost of metals and inflationary pressures: .720 silver in the $1, $5, $10, $25 denominations during the 1940s-50s; cupronickel starting in the 1970s; aluminum-bronze and stainless steel in the 1980s; pieces featuring historical figures (Hidalgo, Cuauhtemoc, Juarez, Madero, Carranza, Sor Juana) in the late 1980s, right before the transition to Nuevos Pesos in 1992. 1988 corresponds to the period when this variant was in circulation. Venustiano Carranza, constitutionalist leader of the Revolution, appears on the $100 circulating denominations of the 1980s.