Chinese opium smokers in a saloon experiencing various effects of the drug. Tinted lithograph, c. 1866, after T. Allom. https://www.rawpixel.com/image/13986394/image-cartoon-person-artFree Image from public domain licenseChinese opium smokers in a saloon experiencing various effects of the drug. Engraving by G. Paterson, 1843, after T. Allom. https://www.rawpixel.com/image/14010099/image-cartoon-person-artFree Image from public domain license