Subject
- Indo-European Telegraph Line4
- Imperialism3
- Bilateral agreements2
- Concessions2
- Surveys2
- Telegraphy2
- Armed forces1
- Bilateral relations1
- Colonial flags1
- Customs duty1
- Embassies and consulates1
- Foreign relations1
- Imports1
- Naval affairs1
- Negotiation1
- Postal services1
- Public holidays1
- Sovereignty1
- Telecommunications equipment1
- Telegraph cables1