1 Franc Bon Régional des départements de l'Aisne [02], des Ardennes [08] and de la Marne [51]

Three of the most heavily occupied and devastated French departments of the First World War — Aisne, Ardennes, and Marne — pooled their emergency issuing authority to produce this regional bon de nécessité in 1916, at a point when the French banking system had effectively withdrawn from the occupied zone and small-denomination coin had vanished entirely from circulation. The tri-departmental arrangement was unusual; most French emergency issues of this period were issued by a single municipality or chamber of commerce, not by a joint committee spanning departments still partly under German military administration.

Redeemability was a serious question when these bons were printed — Ardennes in particular remained under occupation until the armistice, leaving large quantities unredeemed and the issuing committee's obligations in legal limbo well into 1919.