Subject
- Indo-European Telegraph Line[remove]12
- Bilateral agreements7
- Concessions3
- Telegraph cables3
- Telegraphy3
- Imperialism2
- Imports2
- Surveys2
- Telegraph lines2
- Air mail1
- Armed forces1
- Communication methods1
- Communication routes1
- Customs duty1
- Food shortages1
- Food supply1
- Foreign relations1
- Jurisdiction1
- Negotiation1
- Office supplies1