20 Dollars / 20 Piastres

The Banque de l'Indochine's dual-denomination format — denominating simultaneously in dollars and piastres — reflects the monetary confusion of late nineteenth-century French Indochina, where the Mexican silver dollar circulated alongside the French colonial piastre at rough parity. The bank, chartered in Paris in 1875, held the monopoly on note issue across the federation, and this series predates the piastre's full displacement of competing silver coinage by several years.

Bramtot and Duval were both associated with the Imprimerie Nationale in Paris; Wullschleger's engraving work appears across several high-prestige Indochinois issues of the period. The combination is unusual enough to note.