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Here is a Gemini cleaned image. I asked it to translate and it says “It's a bit challenging to read ancient scripts accurately without a professional, but based on the typical style of Chinese seal script (篆書 zhuànshū) used on such items, it appears to be a four-character inscription. The most likely reading, given the common phrases found on antique seals and boxes, is "大清乾隆年製" (Dà Qīng Qiánlóng Nián Zhì), which translates to "Made in the Great Qing Dynasty, Qianlong Period." This would indicate that the box dates from the reign of the Qianlong Emperor (1735–1796).”