Subject
- Political affairs5
- Shipping4
- Boundaries3
- Civil aviation3
- Concessions3
- Homicide3
- Oil3
- Petroleum industry3
- Social conflicts3
- Air services agreements2
- Architectural plans2
- Boundary disputes2
- Cemeteries2
- Muscat Civil Air Agreement (1934)2
- Postal services2
- Recruitment of staff for work overseas2
- Visits2
- Administration1
- Air force1
- Air mail1