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- Macao
- Macedonia
- Madagascar
- Madeira
- Mafeking
- Malacca
- Malagasy Republic
- Malawi
- Maldives
- Mali
- Malta
- Manama
- Mariana Islands
- Martinique
- Marshall Islands
- Mauritania
- Mauritius
- Mayotte
- Mecklenburg-Schwerin
- Mecklenburg-Strelitz
- Memel
- Mexico
- Micronesia
- Middle Congo
- Modena
- Mohéli
- Moldova
- Monaco
- Mongolia
- Meng-Tseu (Mengtsz)
- Montenegro
- Montserrat
- Morocco Agencies
- Morocco
- Moovinar
- Mozambique Company
- Mozambique
- Muscat and Oman
- Muscat
- Myanmar
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