This is a era-specific flag leaderhead of Greece:
Top-Left: Ancient (Athenian symbol in green flag); Top-Right: Medieval (Greek Merchants)
Bottom-Left: Industrial (Kingdom of Greece); Bottom-Right: Modern (Modern Greece)
Top-Left: Ancient (Athenian symbol in green flag); Top-Right: Medieval (Greek Merchants)
Bottom-Left: Industrial (Kingdom of Greece); Bottom-Right: Modern (Modern Greece)
