Based on documentary provenance, the artwork is signed "WIHARTO" (initially interpreted as 'Wimarto'), a common Indonesian surname. Exhaustive database research across primary auction records (Sotheby's, Christie's, Bonhams) does not list Wiharto as a globally tracked fine art master; therefore, the maker is categorized within the skilled Artisan/Decorative tier. During the 1960s and 1970s, regions like Yogyakarta and Solo in Java became epicenters for contemporary batik painting. Artisans began evolving the traditional wax-resist dyeing process—historically used for clothing and recognized by UNESCO as intangible cultural heritage—into a sophisticated medium for fine art wall hangings. While Wiharto does not command the high-tier secondary market prices of "Batik Brahmins" like Amri Yahya or Chuah Siew Teng, the inclusion of an artist's signature indicates formal pride of authorship and places this piece firmly within the recognized regional movement of mid-century Javanese picture-making.^[1]

Because direct comparable sales for 'Wiharto' are currently absent from major institutional databases, this valuation is heavily market-informed by proxy comps of mid-century signed Indonesian avian batiks. To establish fair market value, we anchor on similarly scaled, artisan-signed pieces from the 1960s–1980s, such as avian batiks sold at Selkirk Auctioneers ($100) and Dana Auctions ($50). While dealer retail ceilings for framed examples by peers like 'Pragitha' can stretch to $200–$250, the secondary auction liquidity for unlisted artisan batiks relies strictly on decorative scale, the visual density of the wax-resist 'crackle' effect, and overall condition. The $75 to $150 range represents a realistic hammer price for an original, signed vintage piece in good condition, applying a necessary value ceiling due to the artist's unlisted status.^[1][2]