

This is an exceptionally well-preserved example of a 10 Pesos note issued by the Banco de Sonora during the late Porfiriato period (1911). The obverse features an elegant portrait medallion of Hortensia C. Vélez on the left with a complementary vignette of Mexican cowboys herding cattle across a pastoral landscape on the right, rendered in black on green and yellow underprints with sophisticated Art Nouveau styling. The note exhibits AU (About Uncirculated) condition with no visible wear, creases, or foxing, displaying crisp printing details and clean margins throughout—a testament to careful preservation or remainder status.
Common. Despite its age and regional issuer, the Banco de Sonora 10 Pesos notes are available on the collector market, as evidenced by the eBay price reference showing a VF specimen sold for $31 in July 2024. The catalog notation identifies this as an 'Unissued remainder' from a specific series (DL; DM; DO; DT; DQ; DU), suggesting that remainders survived in quantity. Regional Mexican banknotes from this period, while increasingly scarce compared to modern issues, are not considered rare when found in these condition grades. The AU condition of this specific example and its serial number (112425) place it among better-preserved examples, but the denomination and issuer remain relatively accessible to collectors.
The Banco de Sonora was a regional Mexican bank operating during the twilight years of Porfirio Díaz's presidency, issuing banknotes between 1897-1911 as Mexico modernized its financial infrastructure. The imagery—featuring Hortensia C. Vélez and iconic scenes of cattle herding against rolling Mexican terrain—reflects the economic importance of ranching and pastoral wealth in Sonora state during this period. This note represents the intersection of Mexico's late 19th-century banking expansion and American technological prowess, as evidenced by the American Bank Note Company printing credits.
The obverse displays a masterfully composed Art Nouveau design with a circular engraved portrait medallion of Hortensia C. Vélez positioned left-center, rendered with fine detail showing period hairstyling and refined facial features. To the right is a dynamic landscape vignette depicting two mounted vaqueros herding cattle across open prairie with rolling hills and distant buildings visible on the horizon—a deliberate visual reference to Sonora's ranching heritage and economic foundation. The reverse presents a symmetrical composition with two prominent circular medallions containing large denomination numerals '10' flanking a central bank emblem bearing 'BANCO DE SONORA' text, all executed in elaborate geometric and floral Art Nouveau patterns characteristic of early 20th-century banknote aesthetics. The entire design employs intricate line engraving to create security through complexity.
FRONT: '10' and 'DIEZ PESOS' (Ten Pesos); 'BANCO DE SONORA' (Bank of Sonora); 'EN MONEDA SONANTE' (In sound currency); 'HERMOSILLO, SONORA, MEXICO' (Hermosillo, Sonora, Mexico); Denomination letter 'A'; Series indicator 'DL'; Serial number '112425'; 'American Bank Note Co, New York'; Signature lines for 'INTERVENTOR DEL GOBIERNO' (Government Auditor), 'GERENTE' (Manager), and 'PRESIDENTE' (President). BACK: '10' (repeated in two large circular medallions); 'BANCO DE SONORA' (within central emblem); 'American Bank Note Company, New York'.
Steel plate engraving by American Bank Note Company (ABNC), New York. The note demonstrates the hallmark characteristics of high-security banknote production circa 1897-1911: multiple intaglio-printed colors (black primary design on green and yellow underprints), fine line engraving with complex geometric border patterns, detailed medallion work with radiating lines serving dual aesthetic and security functions, and precise registration of multiple color passes. The quality and intricacy observed in both obverse and reverse indicate state-of-the-art security printing for the period.
This note is identified as Pick S420r (the 'r' suffix indicating a remainder note), series DL per the visible serial prefix. The catalog data indicates that backs for Pick S420 circa 1897-99 include 'EL' in the bank title, while later dates omit 'EL'—this specimen's reverse shows 'BANCO DE SONORA' without 'EL', consistent with later-dated issues toward 1911. The series letters DL, DM, DO, DT, DQ, and DU represent distinct varieties within this issue. No overprints or date variants are visible on this example, and the signatures appear to be blank or unexamined in the provided imagery, typical for remainder specimens.