Île de Sein is a real island off the Finistère coast whose entire adult male population — roughly 130 men — crossed to England in June 1940 to join de Gaulle, prompting his remark that the island constituted one-quarter of Free France. The "Brittany fantasy" designation reflects an established genre of collector issues that imagine Breton monetary independence, with no issuing authority, legal tender status, or governmental backing of any kind behind this piece.
Île de Sein is a real island off the Finistère coast whose entire adult male population — roughly 130 men — crossed to England in June 1940 to join de Gaulle, prompting his remark that the island constituted one-quarter of Free France. The "Brittany fantasy" designation reflects an established genre of collector issues that imagine Breton monetary independence, with no issuing authority, legal tender status, or governmental backing of any kind behind this piece.