Determining the authenticity of a porcelain sculpture’s signature or mark requires a combination of historical knowledge, material analysis, and expert consultation. Here’s a step-by-step guide to help you verify its legitimacy:

1. Research the Artist or Manufacturer: Start by identifying the artist or manufacturer associated with the signature or mark. Cross-reference historical records, catalogs, or databases to confirm its consistency with known works.

2. Examine the Mark’s Style and Placement: Authentic marks are often applied with precision and reflect the techniques of the period. Look for irregularities in font, spacing, or placement, which may indicate forgery.

3. Analyze the Material and Glaze: Authentic porcelain sculptures often use specific clays and glazes unique to their time and origin. Scientific testing, such as X-ray fluorescence (XRF), can reveal inconsistencies.

4. Consult Experts or Appraisers: Seek opinions from certified appraisers or museum curators specializing in ceramic art. Their expertise can provide valuable insights into the piece’s provenance.

5. Compare with Documented Examples: Study authenticated pieces from the same artist or era. Subtle differences in craftsmanship or mark application can reveal fakes.

By combining these methods, you can confidently assess the authenticity of a porcelain sculpture’s signature or mark, ensuring its historical and artistic value.