50 Centimes - Chambre de Commerce de La Roche s/ Yon and de la Vendée 85

French chambers of commerce began issuing emergency small-denomination notes in 1914 because the outbreak of war triggered an immediate hoarding crisis — silver and bronze coins vanished from circulation almost overnight, and the Banque de France had neither the infrastructure nor the mandate to plug the gap at that level. La Roche-sur-Yon's chamber was among dozens that stepped in under emergency authorization, producing locally printed paper to keep retail trade moving in the Vendée.

The Imprimerie Moderne de Nantes handled a considerable volume of these regional emergency issues, and the JP#65 series spans at least three catalogue references, suggesting multiple print runs or date variants across the 1915–1916 period.