20 Baht

P#118 is part of a long-running series that the Bank of Thailand has reprinted with minimal modification across multiple decades, with the 20 Baht denomination serving as one of the most actively circulated values in everyday Thai commerce. The Note Printing Works in Bangkok has produced Thai currency in-house since 1969, giving the central bank direct control over production — an arrangement that reflects a broader postwar policy of reducing reliance on foreign printers such as Thomas De La Rue and Bradbury Wilkinson, both of which printed earlier Thai issues.

The security specification for this note is relatively modest for its era, with no polymer option having been adopted for this denomination despite Thailand's experimentation with polymer substrates on commemorative issues.