Thailand - 10 Baht - 2554 / 2011 - Weight 8,5 gr - Bi-Metallic Aluminium Bronze center - Size 26 mm - Alignment Medal (0°) - Ruler / Bhumipol Adulyadej (Rama IX) - 60th anniversary of office of the National Economic and Social Development Board - Edge : Segmented reeding - Mintage 1 000 000