| John Thomson The Rhodoleia, Hong Kong 1868-1872 (taken) 1981 (print) Photograph Wellcome Collection Wellcome Library no. 18667i, Attribution 4.0 International (CC BY 4.0) LL/97125 This is one of a collection of same-size contact prints made, in 1981, from John Thomson's original negatives. The glass negatives, made between 1868 and 1872, were purchased from Thomson by Sir Henry Wellcome in 1921 and are now in the Wellcome Institute Library
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