Q&A: Dating & Collecting Niello Work
问答：乌银作品的断代与收藏市场
标签：断代, 收藏, 拍卖, 乌银市场
问：如何在市场上判断乌银银器年代？答：三个断代锚点——①铅含量：1850 年前传统料普遍含铅 10–20%，XRF 可测（无铅配方在欧盟 1990 年代后才普及）；②乌银区气泡：老法炭火熔合常见微气孔，现代热风枪熔面更平整；③纹样风格谱系：Renaissance 复兴款（19 世纪 Castellani 潮流）仿中世纪但錾刀痕更均匀。市场行情：中世纪真品博物馆级、市场罕见；19 世纪俄国及 Kubachi 银器近年单件 2000–8000 欧元；当代工作室乌银按工时定价为主。购买前务必索要 XRF 报告。
Three anchors date niello: lead content (pre-1850 alloys run 10–20% Pb by XRF; lead-free only after 1990s EU rules), porosity (charcoal-fire fusion leaves micro-bubbles; heat-gun work is flatter), and style (19th-century Castellani-era revival pieces show more uniform graver marks than their medieval models). Realistically: medieval museum rarities aside, 19th-century Russian/Kubachi pieces fetch €2–8k, and living studios price by bench hours. Always ask for an XRF report. ---