10 Baht - Rama IX 6th ASEAN Orchid Congress

Thailand hosted the 6th ASEAN Orchid Congress in Bangkok in 1986, a regional botanical gathering that carried particular symbolic weight given the country's position as one of the world's leading orchid exporters. The Royal Thai Mint issued this commemorative as part of its broader practice throughout the 1980s of marking scientific and cultural congresses — a pattern that produced a dense run of nickel commemoratives now collected more as a thematic series than as individual issues.