The Munsong cinchona plantation, Kalimpong, Bengal, India: Cinchona succirubra trees (used in production of the anti-malarial drug quinine); a plantation worker stands in front of the trees holding a large container. Photograph, 1905/1920 (?).

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The Munsong cinchona plantation, Kalimpong, Bengal, India: Cinchona succirubra trees (used in production of the anti-malarial drug quinine); a plantation worker stands in front of the trees holding a large container. Photograph, 1905/1920 (?). Wellcome Collection. Public Domain Mark. Source: Wellcome Collection.