1000 Baht

Thailand's Note Printing Works has produced domestic issues since 1969, and by the time this series entered circulation the facility had refined its intaglio and security thread integration to a level comparable with established European printers. The 1000 Baht is the highest circulating denomination and accordingly receives the most intensive security treatment in each successive series — the thread specification here is a windowed metallic type with color-shift properties under angular light.

Pick 139 belongs to the seventeenth series, authorized under Rama X following his accession in 2016. The change of reign required a complete redesign of the higher denominations, which accounts for the relatively late 2018 release date for a note in an otherwise modernized series.