Bronze sculptures are highly valued artworks, and ensuring their authenticity is crucial for collectors and galleries. Artists use several methods to sign or mark their bronze pieces, creating a permanent record of their authorship.

One common technique is the artist's signature, often engraved or incised into the sculpture's base or an inconspicuous area. Some artists prefer a stylized monogram or symbol instead of a full signature. Foundry marks are another key identifier, as reputable foundries stamp their name or logo onto sculptures they produce.

Edition numbers are also critical, typically written as a fraction (e.g., 1/10) to indicate the piece's position in a limited series. Many sculptures include a copyright symbol (©) with the artist's name and year of creation.

Advanced methods like hidden micro-signatures or RFID tags are becoming popular for high-value works. These markings not only authenticate the piece but also help track its provenance. Collectors should examine these details carefully, as forged signatures or missing markings can indicate reproductions.

Understanding these authentication methods helps buyers verify a bronze sculpture's legitimacy and preserves the artist's legacy in the art market.