AI Appraisal Estimate

This is a framed exhibition poster for 'The 4th Annual Culinary Carnival,' featuring a reprographic print of Wayne Thiebaud’s oil painting 'Hors d'oeuvres.' The central image depicts a characteristic Thiebaud still-life: a circular platter of hors d'oeuvres, including grapes, radish slices, and crackers, rendered with thick, impasto-style brushwork in a palette of cream, blue, pink, and deep purple. Below the artwork, descriptive text identifies the venue as the Trade Show Center in San Francisco and the dates as October 17th and 18th. Notably, the poster appears to bear a hand-signed signature 'Thiebaud' with a small heart to the right of the printed name. The paper shows visible signs of aging and wear including noticeable undulation (waving) across the surface, indicating past exposure to moisture or improper mounting. Small dark spots, possibly foxing or debris, are visible near the bottom edge. It is housed in a decorative, dark wood-tone frame with a beaded inner liner. The poster is a significant piece of ephemera for collectors of Bay Area Figurative Movement artists, particularly given the apparent original signature by the artist.

I have completed a visual assessment of the '4th Annual Culinary Carnival' exhibition poster featuring Wayne Thiebaud’s 'Hors d'oeuvres.' While the base item is a commercial offset lithograph, its primary value is derived from the presence of a hand-signed signature and heart motif, typical of Thiebaud’s personal inscriptions. The composition exhibits his signature 'halation' effect and thick impasto reproduction, making it highly desirable for regional collectors of the Bay Area Figurative Movement. The condition, however, is a significant detracting factor. I observed prominent undulation (cockling) across the paper, suggesting moisture infiltration or a failure of the mounting adhesive. The dark spots near the bottom edge appear to be terminal foxing or mold spores, which requires professional conservation to prevent further degradation. The frame, while decorative, appears to be a standard commercial grade and does not significantly contribute to the value. Market demand for Thiebaud ephemera remains robust, with signed posters generally realizing between $300 and $1,200 depending on the image and condition. Given the visible damage to this piece, it sits on the lower-to-middle end of that range. IMPORTANT LIMITATIONS: This appraisal is based solely on digital imagery. A definitive authentication of the signature cannot be made without a physical inspection of the ink's 'bite' into the paper and a comparison of the fluid geometry of the stroke. Full valuation would require ultraviolet (UV) inspection to verify the ink's age and provenance documentation linking the item to the San Francisco event. Without these, the signature is treated as 'attributed' for the purpose of this estimate.