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© Courtesy of the C. V. Starr East Asian Library, Columbia University.
Article
手套之清潔劑, Gloves cleaner
Keywords: hygiene, chemistry, housework,
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景泰藍銀質徽章及戒指、手觸、別針, Cloisonne silver badges and rings, bracelets, brooches
Keywords: San Ho Company, Jewelry, silver production,
三和公司 Sanhe gong si (mentioned in article),