Determining the authenticity and value of a signed metal sculpture requires a meticulous approach combining artistic expertise, technical analysis, and market knowledge. Collectors start by examining the artist's signature, comparing it to verified examples for consistency in style, placement, and medium. Provenance research is critical—documented ownership history, exhibition records, and certificates of authenticity significantly enhance credibility.

Material analysis also plays a key role. Experts assess the metal composition, patina, and construction techniques to ensure they align with the artist's known methods and era. Advanced tools like X-ray fluorescence (XRF) may detect modern alloys inconsistent with the claimed period.

Market trends and auction records provide valuation benchmarks, while appraisers consider rarity, condition, and cultural significance. Collaborating with galleries, auction houses, or forensic art specialists can resolve doubts. Ultimately, a combination of forensic scrutiny and connoisseurship safeguards collectors against forgeries while maximizing investment potential.