Portuguese coin featuring King D. Luiz I (Luís I) portrait

Coins / Numismatics

Common to Uncommon; many Luís I circulation coins are relatively available, though specific dates/varieties can be scarcer

Identified on October 30, 2026

Estimated Value

$5-$40 USD, depending on denomination, date, mint mark, and exact variety

A circulated Portuguese coin bearing the left-facing portrait of King D. Luiz I and the surrounding legend 'D. LUIZ I REI DE PORTUGAL.' The piece appears to be a small-denomination copper/bronze coin from the late 19th century. The design is typical of Portuguese coinage from the Luís I period, with a beaded border and a central bust portrait. The coin shows age-appropriate wear and a darkened brown patina consistent with circulation and oxidation.

Era

Late 19th century, likely reign of King Luís I of Portugal (1861-1889)

Origin

Portugal

Material

Copper or bronze alloy (exact composition unknown from image)

Condition

Fair to Good; visible circulation wear, softened portrait details, and surface toning/patina. Rim and lettering remain legible, with no obvious major corrosion or bends visible.

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Physical Details

Dimensions

Approximately 20-25 mm in diameter, based on appearance

Weight

Light

Authentication

Authenticity Score

Medium; the style, legend, and portrait are consistent with genuine Portuguese coinage, but the exact denomination/date cannot be verified from this single image.

Provenance

Likely struck for circulation in Portugal during the reign of Luís I; exact mint and denomination cannot be confirmed from the visible side alone.

Historical Significance

Coins of King Luís I are historically significant as part of Portugal's 19th-century monarchy and pre-republic coinage. They reflect the numismatic and political identity of Portugal before the 1910 revolution.

Learn more about this type of antique

This identification and value range are AI-generated research aids, not authentication, certification, or a formal appraisal. Learn about the limitations and when to consult a qualified professional appraiser.