Authenticating unsigned or unmarked porcelain sculptures requires a combination of technical expertise and historical knowledge. Start by examining the material composition—authentic antique porcelain often exhibits subtle variations in glaze, texture, and weight due to traditional manufacturing methods. Use ultraviolet light to detect modern repairs or reproductions, as genuine aged porcelain fluoresces differently.

Stylistic analysis is crucial; compare the sculpture’s design, motifs, and craftsmanship with documented works from specific periods or regions. Pay attention to tool marks, firing techniques, and decorative styles that may reveal its origin. Provenance research can also provide valuable clues—track ownership history or exhibition records if available.

Consulting certified appraisers or utilizing advanced techniques like thermoluminescence testing can further verify authenticity. Always cross-reference findings with museum collections or academic resources to ensure accuracy. By combining these methods, collectors can confidently assess unsigned porcelain sculptures and avoid costly mistakes.