Authenticating limited-edition bronze sculptures is a meticulous process that ensures the artwork's legitimacy and value. Artists and experts rely on multiple verification methods to confirm authenticity.

1. Artist Signatures: Most bronze sculptures bear the artist's signature, either engraved or raised on the base or edge. This serves as the primary marker of authenticity.

2. Foundry Marks: Reputable foundries stamp their insignia on sculptures, indicating where the piece was cast. Limited editions often include numbering (e.g., "1/50") to denote exclusivity.

3. Certificates of Authenticity: Artists or estates issue COAs, detailing the sculpture's edition number, creation date, and materials. These documents are critical for provenance.

4. Provenance Research: Collectors trace ownership history through invoices, gallery records, or exhibition archives to validate the artwork's lineage.

5. Expert Appraisal: Specialists analyze patina, casting quality, and stylistic consistency to detect reproductions or forgeries.

By combining these methods, artists and collectors safeguard the integrity of limited-edition bronze sculptures, ensuring their lasting value in the art market.