AI Appraisal Estimate

This is a detailed bas-relief sculptural plaque depicting Leonardo da Vinci's 'The Last Supper.' The piece is likely cast in a composite material such as resin, hydrostone, or cold-cast marble, finished in a matte, bone-white or light gray tone to simulate carved stone or plaster. The sculpture features a high degree of depth, with the twelve apostles and Jesus seated behind a long draped table supported by sawhorses. The architectural background includes a coffered ceiling and panelled walls, providing significant perspective. The outer edges of the piece are rough-hewn, mimicking an irregular stone block or fragment for a rustic appearance. In terms of condition, the piece appears well-preserved with no significant chips or cracks visible on the primary figurative plane, though there is a faint yellowish patina or staining near the bottom edge that may indicate exposure to dust or moisture. There are no visible maker's marks or signatures on the face. The craftsmanship is of a commercial decorative grade, likely produced in the late 20th century, capturing the classic Renaissance composition with clear facial expressions and drapery folds. The overall aesthetic is intended for religious display or home décor, emphasizing the sacred and historical nature of the scene.

I have completed a visual assessment of the bas-relief plaque depicting 'The Last Supper.' The item is a decorative casting, likely composed of an alabaster-resin composite or hydrostone. The workmanship displays a high level of detail consistent with late 20th-century commercial production. While the primary figurative plane is in good condition, there is notable localized staining along the lower periphery and an irregular edge treatment indicative of a 'stone fragment' aesthetic rather than damage. The absence of a signature or foundry mark suggests this is a mass-produced devotional item rather than a unique artist's commission. The market for religious wall decor of this nature is currently saturated; similar cast-resin reliefs are frequently available in the secondary market (eBay, Etsy, and local auctions) for under $100. Factors limiting value include its contemporary material and commonality. This valuation is based solely on a visual inspection of the provided description and image. A definitive authentication would require an in-person physical inspection to confirm material density, weight, and the presence of any hidden maker's marks on the reverse. Scientific testing to determine the specific polymer binder used would be required to establish a precise manufacturing date. Without provenance or a confirmed manufacturer (such as A. Santini or Fontanini), the value remains in the decorative and sentimental range.