© Courtesy of the C. V. Starr East Asian Library, Columbia University.

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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),