Essai coinage for Tunisia in this period was produced in Paris as trial or pattern strikes, submitted for administrative approval before authorized issue — a bureaucratic requirement under the French Protectorate rather than any collector-driven impulse. This particular type was never advanced to circulation, leaving essais as the only physical record of the denomination's proposed design for 1918.
Nickel brass was being evaluated across multiple French colonial administrations during the war years as copper and nickel supplies came under military requisition pressure.
Essai coinage for Tunisia in this period was produced in Paris as trial or pattern strikes, submitted for administrative approval before authorized issue — a bureaucratic requirement under the French Protectorate rather than any collector-driven impulse. This particular type was never advanced to circulation, leaving essais as the only physical record of the denomination's proposed design for 1918.
Nickel brass was being evaluated across multiple French colonial administrations during the war years as copper and nickel supplies came under military requisition pressure.