Description:
Obverse
King Bhumibol Adulyadej watering crops in the field.
Reverse
Lettering:
รางวัลนักวิทยาศาสตร์ดินเพื่อมนุษยธรรม๑๖ เมษายน ๒๕๕๕
IUSS
International Union of soil Sciences
His Majesty King Bhumibol Adulyadej
IUSS Humanitarian Soil Scientist
16th April 2012
๒๐ บาทประเทศไทย
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