The Thailand 20 Baht Banknote was issued by the Bank of Thailand between 1971 and 1981. It is predominantly green. Its obverse side features two mythological serpents called nagas, the Royal Garuda emblem, and a portrait of Bhumibol Adulyadej. Its reverse side depicts the Royal Barge Suphanahongse with temples in the background. Security features include a solid green security thread with printed Thai text and a watermark of Rama IX. It measures 140 mm x 73 mm and is signed by Sanoh Unakol and General Kriangsak Chommanan. This particular banknote is in uncirculated condition and has been TAP authenticated with a grade of 60-70.