1 franc Chambers of commerce Domard aluminium pattern

France's postwar small-change crisis was acute enough that the Chambers of Commerce — a decentralized network of regional trade bodies — were granted temporary authority to issue emergency token coinage between 1920 and 1927, filling a void the Monnaie de Paris was structurally unable to address at scale. This piece is a pattern by Joseph-Marie Domard, exploring aluminium as a candidate material before production specifications were locked down. The documented varieties under Mazard 2583 reflect genuine competition between competing technical proposals, not simple design iteration.