Determining the authenticity and value of a metal sculpture by a renowned artist requires a meticulous approach combining expertise, research, and technical analysis. Seasoned collectors and appraisers follow a multi-step process to ensure legitimacy and assess worth.

First, provenance plays a critical role. Documentation such as certificates of authenticity, exhibition records, and ownership history help trace the sculpture back to the artist. Auction house records or gallery receipts add credibility.

Next, material analysis provides clues. Experts examine the metal composition, patina, and craftsmanship techniques unique to the artist. X-ray fluorescence (XRF) testing may reveal alloy compositions matching the artist's known materials.

Stylistic evaluation is equally important. Specialists compare the sculpture's form, texture, and aesthetic details against the artist's cataloged works. Even subtle deviations can indicate reproductions.

Market trends also influence value. Auction results, collector demand, and the artist's reputation in the art world all impact pricing. Rare or historically significant pieces command premium valuations.

Finally, consulting established art authentication boards or the artist's foundation offers authoritative verification. Many renowned artists have committees dedicated to certifying works posthumously.

By combining these methods, collectors can confidently authenticate sculptures and make informed acquisitions. As the art market evolves, staying updated on verification technologies and market shifts remains essential for serious collectors.