10 Baht 9th series

Thailand's ninth series notes were issued under a monetary framework established after the country abandoned the currency board system and reorganized its exchange rate structure in the early 1950s. The 10 Baht denomination was the workhorse of this series, circulating for over fifteen years — an unusually long run that reflects the relative monetary stability Thailand maintained through that period despite significant regional turbulence.

Thomas De La Rue's intaglio work on this series is among the cleaner examples of mid-century Asian currency printing from the London trade. The watermark — a feature De La Rue had refined over decades — remains one of the primary authentication points for the series, as period counterfeits almost universally failed to replicate it convincingly.