Obverse

Reverse

Follis or fractional bronze

Byzantine Follis or 10 Nummi (Uncertain Emperor/Mint)

Byzantine Empire · 6th - 7th Century AD

An ancient heavy bronze Byzantine coin featuring a prominent cross potent or linear cross on one side and heavily worn imperial motifs on the other, showing significant environmental patination and age.

Country: Byzantine Empire
Year: 6th - 7th Century AD
Denomination: Follis or fractional bronze
Metal: Bronze
Grade: Fair to About Poor (heavy wear, corrosion, and smoothing)

This report is AI-generated and can be wrong. Always verify grade, authenticity, and value with a qualified dealer or certified grading service before buying, selling, or insuring.

Identified September 18, 2026More byzantine empire coins →

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Overview

Historical significance

Byzantine bronze coins circulated widely throughout the Mediterranean and Near East, serving as everyday currency during a turbulent period marked by wars with the Sasanian Empire and the rise of early Islamic expansions.

Obverse (front)

Extremely worn portrait, likely of a Byzantine emperor facing forward, though details are obscured by wear and corrosion.

Reverse (back)

Features a large central cross (such as a cross potent) or a denomination mark, flanked by indistinct letter legends.

Estimated value

$15-$40 depending on exact attribution and collector demand for ancient bronzes in lower grade

What drives this coin's value

Legibility of mint marks, emperor identification, presence of original dark patina, and overall flan shape

Grade assessment

Fair to About Poor (heavy wear, corrosion, and smoothing)

Mintage & rarity

Unknown mintage, moderately common as ancient Byzantine base metal coinage, though specific die varieties may be scarce

Authenticity & counterfeit red flags

Look for natural earthen encrustations, authentic bronze disease-free patination, and correct fabric/weight. Modern forgeries of Byzantine bronzes usually lack the correct crystalline structure and natural wear patterns.

Notable varieties & errors

Overstrikes, which are common for this period as older coins were frequently recycled and restruck with new imperial types

Similar coins

Other 6th to 7th-century Byzantine folles of Justinian I, Maurice Tiberius, or Phocas

Care & preservation

Store in a stable environment with low humidity. Do not attempt to clean or remove the ancient patina, as this can severely damage the coin and reduce its numismatic value.

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