The Opium Den (1881) by William Lamb Picknell.
The romantic side of the addiction business. Needless to say, there’s a lot more of this kind of thing. The ultimate opium-related pictorial art is still Attila Sassy’s remarkable Opium Dreams from 1909, a series of drawings which can be seen at 50 Watts in high-quality scans.
The Opium Den (no date) by Vincent G. Stiepevich.
Chez la Marchande de Pavots (The House of the Poppy Merchant, 1920) by Georges Barbier.
Opium den from Fantasio (1915) by Georges Barbier.