An opium den in London's East End with smokers lying on wooden bunks and slouching by the fire. Wood-engraving by W. B. Murray, c. 1880.

Licence: Public Domain Mark

Credit: An opium den in London's East End with smokers lying on wooden bunks and slouching by the fire. Wood-engraving by W. B. Murray, c. 1880. Wellcome Collection. Source: Wellcome Collection.