New commemorative coins featuring the King and Thai elephants, minted in gold and silver, will go on sale for the first time at a coin fair in Germany this month, the Treasury Department announced.Director-general Jakkrit Parapuntakul said the Thai elephant commemorative coins will be issued in three denominations -- 4,000 and 2,000 baht made from 99.9% gold and weighing 31.21 grammes and 7.8 grammes