Subject
- Bilateral agreements[remove]25
- Frontiers8
- Indo-European Telegraph Line7
- Surveys3
- Telegraph cables3
- Bilateral relations2
- Customs administration2
- Foreign relations2
- Imports2
- Maps2
- Railways2
- State visits2
- Taxation2
- Anglo-Persian War (1856-1857)1
- Bon voisinage agreements1
- Border disputes1
- Boundaries1
- Civil unrest1
- Communication methods1
- Compensation1