Grading notes
Strike is part of the diagnosis.
Judge wear at the eagle breast, wing feathers, serpent, cactus, LIBERTAD band, and central rays only after accounting for weak strike, die wear, and adjustment marks.
Representative Republican issue study
1823 Mo JM Republican 8 Reales
Mexico City’s 1823 issue is the first dated Republican eight-reales entry in the normalized corpus and the only mint represented for that year. Its profile-eagle or “Hookneck” language belongs to the introductory generation, not to every later cap-and-rays die.
A mature diagnostic study selected from the complete matrix; neighbouring records stay matrix-only until they pass the same gate.
Verified image pendingNo neighbouring date, mint, or type is substituted
1823Date
MoMintmark
JMAssayer mark
Unknown — not zeroMintage
Historical and mint context
1823 Mo JM Republican 8 Reales
Mexico City’s 1823 issue is the first dated Republican eight-reales entry in the normalized corpus and the only mint represented for that year. Its profile-eagle or “Hookneck” language belongs to the introductory generation, not to every later cap-and-rays die.
MoMexico City Mint
JMContextual assayer mark
KM 377.10Catalog crosswalk
1Normalized matrix rows
Unknown — not zeroReported mintage
Attribution diagnostics
Read the complete identity before grade or price.
- Confirm Mo and JM together; neither M nor J alone is sufficient.
- Check the profile-eagle anatomy and cap-ray hub against the introductory generation.
- Treat weak centers, scratches, corrosion, and cleaning separately from identity.
| Date | Mint | Assayer | Design generation | Variety classes | Confidence |
|---|---|---|---|---|---|
| 1823 | Mo | JM | Introductory profile-eagle / Hookneck | base-issue | specialist-registry |
Authentication notes
Check cumulative compatibility.
Check the complete date–mint–assayer combination, die style, 27.07 g nominal standard, diameter tolerance, security edge, and .903 silver standard. This page is not a substitute for professional authentication.
Population and market evidence
No unsupported price or population snapshot.
No population total, survival estimate, or grade-price table passed the normalized, dated, multi-source publication gate.
Sources
Issue identity and series context.
- Historia de la moneda y del billeteBanco de México · tier 1 · 2026-07-21
Official Republican iconography, export role, and the fourteen-mint network.
- Republic RealesMexican Numismatics · tier 2 · 2026-07-21
Introductory profile-eagle history, cap-and-rays design, and specialist issue notes.
- Mexican 8 Reales, Circulation Strikes (1823–1897): Set CompositionPCGS Set Registry · tier 2 · 2026-07-21
1,112 date–mint–assayer–variety registry slots used as the primary issue-matrix crosswalk. Registry weights are not rarity estimates.
- 8 Reales – Mexico (N# 7394)Numista · tier 2 · 2026-07-21
Discovery and cross-check only: nominal 27.07 g, .903 silver, 38.9 mm reference diameter, security edge, orientation, and mint-level KM family suffixes.