Hungary (Naval ensign)

Jan 1, 1946 | Naval flag |

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Põlva County (Põlvamaa)

Jan 1, 1938 | State / Province |

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Võru County (Vorumaa)

Jan 1, 1938 | State / Province |

Pärnu County (Parnumaa)

Jan 1, 1938 | State / Province |

Vatican City

Jun 7, 1929 | Country flag, Special, State flag, War flag |

Together with Switzerland the only square flag in the world....