AI Appraisal Estimate

This is a large, dramatic folding fan consisting of nineteen staves. The guards and sticks are crafted from a high-quality imitation tortoiseshell, likely celluloid or an early plastic polymer, common in the late 19th and early 20th centuries. The material exhibits the characteristic mottled amber and deep translucent brown swirling associated with genuine hawksbill shell. Each stick is topped with a voluminous, dyed black ostrich feather plume, securely bound to the plastic supports with black thread. When fully extended, the fan measures approximately 74cm across, indicating it is an evening or opera-style accessory. The construction features a metal pin at the pivot point, finished with a matching faux-tortoiseshell finger ring for secure handling. Stylistically, this piece dates to the late Victorian or Edwardian era (circa 1890-1910), a period when large feather fans were at the height of fashion for formal evening wear. The condition appears excellent with no visible shedding of the plumes, no cracks to the celluloid staves, and the structural integrity of the mounts remains tight. The lack of manufacturer marks suggests a high-end commercial boutique origin. In the UK market, such well-preserved examples typically command interest from costume collectors and period film departments.

Based on my examination of this Victorian-style folding fan, I have determined it to be a high-quality opera accessory dating from the late 19th to early 20th century (circa 1895–1910). The fan features nineteen staves crafted from celluloid, an early plastic developed to mimic the aesthetic of hawksbill tortoiseshell. The voluminous black ostrich plumes appear to be in remarkable condition, retaining their density and structural integrity without the 'shattered' appearance often seen in aged organic fibers. Market demand for large-scale ostrich fans remains steady, particularly among collectors of Edwardian 'Belle Époque' fashion and buyers for period film production. While genuine tortoiseshell would command a significant premium, the use of high-grade celluloid was standard for durable evening wear of the era. The presence of the original finger ring and the lack of visible damage to the pivot pin significantly bolster its value. Recent auction results for similar 70cm+ examples in the UK market typically fall within the £150–£300 range when plumes are intact. Limitations of this appraisal include the inability to physically tactile-test the celluloid for the 'camphor' scent or 'hot needle' reaction used to differentiate early polymers from modern reproductions. Furthermore, I cannot verify the strength of the thread bindings or the presence of insect damage deep within the plumes' quill base from images alone. A full authentication would require an in-person inspection of the pivot tension and a microscopic review of the plume shafts to confirm authenticity of the dye and age-related wear. No provenance was provided, which, if documented, could further elevate the historical significance and value.