1 Franc - Chambre de Commerce du Mans 72

The Chambres de Commerce emergency issues of 1914–1922 exist because the French government's wartime coin requisitions — copper and nickel pulled for shell casings — created an immediate small-change crisis. Regional chambers were authorized to fill the gap, and dozens did, each printing their own fractional notes. The Le Mans chamber's series is among the more prolific, with Monnoyer printing multiple date variants under the same Pick references, which accounts for the four suffix numbers consolidated under JP#69-12 through 15.

Monnoyer was a long-established Le Mans press, not a specialized security printer, so the watermark is the primary — and fairly modest — anti-counterfeiting measure.