Collection 113/12 Opium and Drugs: Conferences and Conventions - Drug Limitation Convention 1931: procès - verbal of 26 June 1936 (Geneva) to alter date of issue of annual statements of world requirements of dangerous drugs
Collection 113/14 Opium and Drugs: Conferences and Conventions - International Convention for the suppression of the illicit traffic in dangerous drugs
Collection 114/5 Opium and Drugs: Policy and Production - List of factories authorised to manufacture dangerous drugs under Article 20 of the 1931 Drug Convention
Collection 117/7 Opium and Drugs: Reports and statistics - Permanent Central Opium Board: Government of India quarterly returns of import and export statistics 1929 - 1935
Collection 117/8 Opium and Drugs: Reports and statistics - Permanent Central Opium Board: Government of India quarterly returns of import and export statistics from 1936
Collection 117/9 Opium and Drugs: Reports and statistics - Permanent Central Opium Board: Government of India annual statistics up to and including 1933