20 Baht - Rama IX Posthumous, Co-operatives

Issued in late 2016 to mark the centenary of the Thai cooperative movement, this commemorative was struck just weeks after the death of King Bhumibol Adulyadej on October 13, 2016 — making it one of the first coins to carry his posthumous designation. Bhumibol had been a genuine advocate for agricultural cooperatives as instruments of rural development, lending the subject unusual personal resonance for this particular reign.

The cooperative centenary series spans multiple denominations and dates; collectors should verify the specific issuing decree to distinguish authorized releases from later restrike issues distributed through non-mint channels.