Subject
- Bilateral agreements[remove]30
- Frontiers8
- Indo-European Telegraph Line7
- Telegraph lines4
- Surveys3
- Telegraph cables3
- Bilateral relations2
- Customs administration2
- Foreign relations2
- Imports2
- Maps2
- Military operations2
- Railways2
- Security of property2
- State visits2
- Subsidies2
- Taxation2
- Anglo-Persian War (1856-1857)1
- Bon voisinage agreements1
- Border disputes1