500 Francs - Blue and pink type 1888

This note's production run of nearly five decades — from the late Opportunist Republic through the Popular Front years — is unusual even by Banque de France standards, which favored long-lived designs but rarely sustained a single type across such political and economic upheaval. The fourteen distinct signature combinations catalogued for P#66 reflect successive changes in bank governance: the three-signatory system required a Gouverneur, Sous-Gouverneur, and Secrétaire Général, and tracing the progression from Delmotte through Roulleau maps almost exactly onto France's shifting monetary politics between the Boulanger crisis and the franc's devaluation under Blum.

Pannemaker — who engraved the reverse — was primarily known as a wood engraver of considerable reputation, his name attached to reproductions of major 19th-century paintings. His involvement here is a reminder of how porous the boundary was between fine-art reproduction and banknote craft in the French atelier tradition. Barre's contribution on the obverse connects the note to an earlier generation of die-cutting expertise at the Paris Mint.

Notes dated between October 1907 and October 1917 carry the longest single signature run in the series — a decade under Frachon and Laferrière, spanning the entirety of the First World War.