| 1. | International Convention concerning the Use of Broadcasting in the Cause of Peace. Geneva, 23 September 1936 | 30 | 509 | 1 | | International Convention concerning the Use of Broadcasting in the Cause of Peace |
| 2. | Special Protocol concerning Statelessness. The Hague, 12 April 1930 | 30 | 510 | 2 | | Special Protocol concerning Statelessness |
| 3. | Protocol relating to a Certain Case of Statelessness. The Hague, 12 April 1930 | 30 | 511 | 3 | | Protocol relating to a Certain Case of Statelessness |
| 4. | Convention on Certain Questions relating to the Conflict of Nationality Laws. The Hague, 12 April 1930 | 30 | 512 | 4 | | Convention on Certain Questions relating to the Conflict of Nationality Laws |
| 5. | Protocol relating to Military Obligations in Certain Cases of Double Nationality. The Hague, 12 April 1930 | 30 | 513 | 5 | | Protocol relating to Military Obligations in Certain Cases of Double Nationality |
| 6. | Protocol on Arbitration Clauses. Geneva, 24 September 1923 | 30 | 543 | 6 | | Protocol on Arbitration Clauses |
| 7. | Convention on the Execution of Foreign Arbitral Awards. Geneva, 26 September 1927 | 30 | 544 | 7 | | Convention on the Execution of Foreign Arbitral Awards |
| 8. | Convention for the Settlement of Certain Conflicts of Laws in connection with Bills of Exchange and Promissory Notes. Geneva, 7 June 1930 | 30 | 545 | 8 | | Convention for the Settlement of Certain Conflicts of Laws in connection with Bills of Exchange and Promissory Notes |
| 9. | Convention for the Settlement of Certain Conflicts of Laws in connection with Cheques. Geneva, 19 March 1931 | 30 | 546 | 9 | | Convention for the Settlement of Certain Conflicts of Laws in connection with Cheques |
| 10. | Convention providing a Uniform Law for Bills of Exchange and Promissory Notes. Geneva, 7 June 1930 | 30 | 547 | 10 | | Convention providing a Uniform Law for Bills of Exchange and Promissory Notes |
| 11. | Convention providing a Uniform Law for Cheques. Geneva, 19 March 1931 | 30 | 548 | 11 | | Convention providing a Uniform Law for Cheques |
| 12. | Convention on the Stamp Laws in connection with Bills of Exchange and Promissory Notes. Geneva, 7 June 1930 | 30 | 549 | 12 | | Convention on the Stamp Laws in connection with Bills of Exchange and Promissory Notes |
| 13. | Convention on the Stamp Laws in connection with Cheques. Geneva, 19 March 1931 | 30 | 550 | 13 | | Convention on the Stamp Laws in connection with Cheques |
| 14.a. | International Convention for the Suppression of Counterfeiting Currency. Geneva, 20 April 1929 | 30 | 551 | 14 | a | International Convention for the Suppression of Counterfeiting Currency |
| 14.b. | Protocol to the International Convention for the Suppression of Counterfeiting Currency. Geneva, 20 April 1929 | 30 | 552 | 14 | b | Protocol to the International Convention for the Suppression of Counterfeiting Currency |
| 15. | Optional Protocol regarding the Suppression of Counterfeiting Currency. Geneva, 20 April 1929 | 30 | 553 | 15 | | Optional Protocol regarding the Suppression of Counterfeiting Currency |
| 16. | Convention and Statute on Freedom of Transit. Barcelona, 20 April 1921 | 30 | 554 | 16 | | Convention and Statute on Freedom of Transit |
| 17. | Convention and Statute on the Regime of Navigable Waterways of International Concern. Barcelona, 20 April 1921 | 30 | 555 | 17 | | Convention and Statute on the Regime of Navigable Waterways of International Concern |
| 18. | Additional Protocol to the Convention on the Regime of Navigable Waterways of International Concern. Barcelona, 20 April 1921 | 30 | 556 | 18 | | Additional Protocol to the Convention on the Regime of Navigable Waterways of International Concern |
| 19. | Declaration recognising the Right to a Flag of States having no Sea-coast. Barcelona, 20 April 1921 | 30 | 557 | 19 | | Declaration recognising the Right to a Flag of States having no Sea-coast |
| 20. | Convention and Statute on the International Régime of Maritime Ports. Geneva, 9 December 1923 | 30 | 558 | 20 | | Convention and Statute on the International Régime of Maritime Ports |
| 21. | Convention on the Taxation of Foreign Motor Vehicles. Geneva, 30 March 1931 | 30 | 559 | 21 | | Convention on the Taxation of Foreign Motor Vehicles |
| 22. | International Convention relating to the Simplification of Customs Formalities. Geneva, 3 November 1923 | 30 | 560 | 22 | | International Convention relating to the Simplification of Customs Formalities |
| 23. | International Convention for the Campaign against Contagious Diseases of Animals. Geneva, 20 February 1935 | 30 | 561 | 23 | | International Convention for the Campaign against Contagious Diseases of Animals |
| 24. | International Convention concerning the Transit of Animals, Meat and Other Products of Animal Origin. Geneva, 20 February 1935 | 30 | 562 | 24 | | International Convention concerning the Transit of Animals, Meat and Other Products of Animal Origin |
| 25. | International Convention concerning the Export and Import of Animal Products (other than Meat, Meat Preparations, Fresh Animal Products, Milk and Milk Products). Geneva, 20 February 1935 | 30 | 563 | 25 | | International Convention concerning the Export and Import of Animal Products (other than Meat, Meat Preparations, Fresh Animal Products, Milk and Milk Products) |
| 26. | Convention establishing an International Relief Union. Geneva, 12 July 1927 | 30 | 564 | 26 | | Convention establishing an International Relief Union |
| 27. | Convention on the International Régime of Railways. Geneva, 9 December 1923 | 30 | 565 | 27 | | Convention on the International Régime of Railways |
| 28. | Convention regarding the Measurement of Vessels employed in Inland Navigation. Paris, 27 November 1925 | 30 | 566 | 28 | | Convention regarding the Measurement of Vessels employed in Inland Navigation |
| 29. | General Act of Arbitration (Pacific Settlement of International Disputes). Geneva, 26 September 1928 | 30 | 567 | 29 | | General Act of Arbitration (Pacific Settlement of International Disputes) |
| 30. | Convention concerning the Unification of Road Signals. Geneva, 30 March 1931 | 30 | 568 | 30 | | Convention concerning the Unification of Road Signals |
| 31. | Agreement concerning Maritime Signals. Lisbon, 23 October 1930 | 30 | 569 | 31 | | Agreement concerning Maritime Signals |
| 32. | Convention relating to the Non-Fortification and Neutralisation of the Aaland Islands. Geneva, 20 October 1921 | 30 | 570 | 32 | | Convention relating to the Non-Fortification and Neutralisation of the Aaland Islands |
| 33. | Agreement concerning Manned Lightships not on their Stations. Lisbon, 23 October 1930 | 30 | 571 | 33 | | Agreement concerning Manned Lightships not on their Stations |