Columbia subject headings:
Harvard subject headings:
Antiques--Asia
Antiques--China
Chinese diaspora--History.
Drug paraphernalia--Asia--History.
Drug paraphernalia--Asia.
Drug paraphernalia--China.
Martin, Steven, 1962---Art collections.
Opium trade
Opium trade--Asia--History.
Princeton subject headings:
Art objects, Chinese.
Drug paraphernalia.
Opium abuse.
Opium trade--China--History.