Two Chinese men stand by a shop window while opium smokers sit on the terrace above. Pencil drawing with sepia wash by W. J. Bellairs, 19th century.

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Two Chinese men stand by a shop window while opium smokers sit on the terrace above. Pencil drawing with sepia wash by W. J. Bellairs, 19th century. Wellcome Collection. Public Domain Mark. Source: Wellcome Collection.