25 Centimes Trial of H. Guis, small module

Henri Guis submitted this small-module trial piece to the Monnaie de Paris as part of the competitive process for redesigning French fractional coinage in the years before the First World War. The essai program routinely produced multiple module variants from the same engraver, allowing the administration to evaluate proportional scaling before committing to a production type. Guis's submission was ultimately unsuccessful — the circulating 25 centimes coinage of this period went to other designs — leaving his trials as mint curiosities rather than precursors to anything struck for commerce.