20 Baht / 20 Ticals Banque de l'Indo-Chine

The Banque de l'Indo-Chine's dual-denomination series — quoting both Baht and Ticals on the same face — was a deliberate concession to the currency realities of Siam, where the bank operated branches but had no formal monopoly. The Paris printing by Chaix (the house responsible for this series) under Wullschleger's engraving gave the notes a visual weight more aligned with metropolitan French securities than with circulating colonial paper.

Bramtot was a Salon-exhibited painter, an unusual credit for a banknote commission. His involvement suggests the Banque was conscious of prestige at a moment when it was competing for commercial legitimacy across multiple Southeast Asian territories simultaneously.